Storage has never been cheaper. For as little as $50, you can add a terabyte to your laptop or computer or desktop via an external drive. That is enough to house more than 750,000 MP3s or images, or more than 230 full-length movie data files. Every computer out there, from mega-huge desktop towers to budget-price Windows tablets, can be connected with at least one hard drive, with no complex installation required. Besides, if you are lucky enough to have multiple I/O slots, you can hook up much more. There is a lot to consider laptop-class or desktop, conventional rotating or solid-state drives (SSD) are several of aspects.
If you are looking for large capacity and tiny prices, then the classic hard drive remains unbeaten. Available capacities of portable drives with laptop-style drives within now extend up to an enormous 4000GB, more known as four terabytes (TB). Most portable USB drives are operated by the connected laptop or computer, so you can use them on the move without the need to plug into the mains or use batteries. Here is everything you need to consider when shopping for a hard drive.
Best External Portable Solid State Drives 2017
Samsung T3 Portable SSD
Samsung T3 Portable SSD - 500GB - USB 3.1 External SSD (MU-PT500B/AM)
7 used from $ 161.99
- Portable Design with Internal SSD-level Performance
- Superfast Read-Write Speeds of up to 450 MB/s
- Shock Resistant & Secure Encryption
- Compatible with PC, Mac, & Android OS
The Samsung T3 and its forerunner, the T1, are the most convenient and quickest USB SSDs on the marketplace. Indeed, the T1 I have been using for recent times or so have stored me, so a lot of your time moving data from PC to PC and installing software, I do not know what I would do without it.
The Portable SSD T3 is fantastic for those seeking a light and fast, convenient, compact and effective portable storage drive. Its smaller sized and faster than portable hard drives, less complicated than a 2.5-inch SSD with a USB adaptor and faster and more effective than common USB flash drives.
Design and Features
The T3 is an impressively little and light and portable piece of kit. Measuring with 74 x 58 x 10.5-mm and with a weight of just 51g, it is an outstanding 10mm narrower and shorter than 2.5-inch SATA-SSD, and around 20-g lighter.
Setup and Performance
If you would like to secure your data, though, you will have to run Samsung’s software, which is already on the drive and is a simple non-install app that will let you write a password and then secure the drive. Likewise, link this drive to an Android phone or tablet and download the app and you can get your data files on the go. It is a super-convenient system.
- Convenience of USB Type-C connection
- Great performance
- Stylish design
- More costly than a regular 2.5in drive
- Not waterproof or ruggedized
- Only USB 3.1 Gen. 1
If you need quick, effective portable storage, then the Samsung Portable SSD T3 is the best buy. It is a bit pricier than common portable hard disks or USB flash drives, but you get plenty for the top quality.
SanDisk Extreme 500 Portable SSD
SanDisk Extreme 500 Portable SSD 480GB SDSSDEXT-480G-G25
- High-speed storage for high res photos, videos and files
- Transfers files up to 4x faster than an external hard drive
- No moving parts to break or overheat
- Compact and shock resistant
- SanDisk Secure Access software encrypts private files
SanDisk developed the Extreme 500 to replace the functionality of a portable hard drive while providing improved transfer speeds. The Extreme 500 is intended for videographers and photography that need a quick, portable drive that can bear large use and hold up against more physical damage than a regular HDD. Customers will be trading the outstanding capacity of an HDD for the interest amount and stability an SSD, with a maximum capacity of 480GB and top reported transfer amount of 430MB/s study.
Build and Design
SanDisk developed the Extreme 500 to be as little and smooth as possible, giving it a textured black chassis with bright red marking on the top. There is a bumper coating the external to offer some extra padding. The base of the Extreme 500 has some basic product data and some texture for traction.
To analyze the efficiency of the SanDisk Extreme 500, we will cover three different areas of analysis: 2MB successive and random transfer speeds via IOMeter, the BlackMagic hard drive amount analyze, and PCMark 8 storage testing with a Dell Precision 7150 mobile workstation.
In our first benchmark, we will look at transfer speeds using a USB 3.0 relationship on a current creation MacBook Pro. Here, we leveraged the BlackMagic hard drive amount analyze, which is a Mac-specific tool mainly used to see how well drives play with the finest high-quality movie. In this analyze the Extreme 500 posted 428.8MB/s study and 364.2MB/s write.
- Very resilient in comparison to portable HDDs
- Rugged body
- Sleek design
- Great performance
- Convenient to carry
- Great performance
- Short, stubby USB Cable
- Top-capacity design is the only 480GB
The Extreme 500 provides improved strength and SSD efficiency for photography lovers, videographers, and storage enthusiasts who wish to depart from the regular HDD settings for their portable hard drive.
MyDigitalSSD OTG Portable SSD (On The Go)
MyDigitalSSD 512GB (480GB) OTG (On The Go) mSATA Based SuperSpeed USB 3.0 UASP Portable External Solid State Storage Drive SSD
- Small, light and ultra-mobile
- Supports USB 3.0 Interfaces - up to 10x faster than USB 2.0
- Durable & shock resistant
- UASP compliant for maximum SSD and USB 3.0 Speeds
MyDigitalSSD claims that their MyDigitalSSD 512B PocketVault SuperSpeed USB 3.0 Portable External SSD is the least costly, high capacity external SSD on the marketplace. With new designs being released and the cost coming down almost daily, as soon as you look at this article, somebody else may cover the cost of this claim. With an ultra-portable style, quick read/write data accessibility speeds, and 512GB of storage space, this design has it all.
The MyDigitalSSD OTG portable external SSD is an mSATA based SSD that relies on SuperSpeed USB 3.0 with UASP technological innovation. Most external SSDs with USB 3.0 interface functions UASP, and this helps make the transfer amount faster in comparison to the external storage drives that doesn’t assistance UASP.
Specs and Features
MyDigitalSSD is smooth, light, and portable of 112.5mm x 47mm x 10.5 mm. It has incorporated USB 3.0 Cable. Give actual SSD efficiency and ability to start OS from an external drive. It has four interchangeable rubber sleeves for security and simple grip, which are in different colors like (Black, Red, Pink, and Blue). It also plugs and play in Mac OS 10.8 or Windows 8 and up to back up USAP mode data transfer. Best the factor is that it also has the warranty three years. SSD is the wise decision for portable mediums because in case of shakes, lumps, and drops this drive is resilient
- Support super-fast USB 3.0 data transfer and backward appropriate for USB 2.0
- Compact being only a hair wider than a small company card
- Very little, light and portable, and portable
- Fast read/write speeds of 240/170MB/s
- Good security
- Fast and reliable
- Warranty not as long as some
- Needs individual USB cable
It is little enough to fit in your wallet quickly, and it allows you to bring your images, songs, videos, records securely wherever you go you can just take it in your wallet. It works with any Mac or PC that has USB slot of 3.0 or less.
PNY Elite Portable Solid State Drive (SSD)
PNY Elite 480GB USB 3.0 Portable Solid State Drive (SSD) - (PSD1CS1050-480-FFS)
1 used from $ 152.14
- Transfer large files at blazing fast speeds
- Exceptional reliable performance offering up to 430 MB/s seq. Read and 400 MB/s seq. Write speeds.
- Transfer files faster than traditional USB 3.0 Flash drives.
- Compatible with most Windows and Mac computers via USB port.
- 24/7 US based technical support.
The PNY Elite level portable SSD is available in 240 and 480GB capacities and is constructed of an outstanding aluminum exterior with an involved USB 3.0 wire. Specifications list the Top level as able to achieve speeds up to 430MB/s study and 400MB/s write with both PC and Mac compatibility and a 3-year warranty. The PNY Elite level Portable SSD Drive is a little mobile storage remedy for anyone on the go. Keep your essential data files quickly at achieving with an ultra-compact and resilient aluminum enclosure.
High Speed Data Transfer
With incredibly quick study speeds up to 430MB/s* and write speeds up to 400MB/s*, the PNY Elite level Portable SSD allows you to transfer large data files within minutes. With the PNY Portable SSD, you will experience quick and effective efficiency in comparison to a conventional portable hard drive.
PNY has been in the microchip technology manufacturing company for over 30 years specializing in processing and flexibility products, which are sold in 50+ countries around the world.
- Exceptional, effective efficiency offering up to 430 MB/s seq. study and 400 MB/s seq. write speeds
- Transfer large data files at high quick speeds
- Compatible with most Windows and Mac computer systems via USB Port
- Transfer data files faster than conventional USB 3.0 Flash Pushes
- Compatible with most Windows and Mac PCs
- 24/7 US based tech assistance team
- Backward appropriate for USB 2.0 slots
- Read and Write speeds are not as consistent
- No data security software
Ultimately, if you do not have much over $100 to spend on an SSD, but you want as outstanding of a drive as possible, then this PNY SSD is probably your best bet. It is a little bigger than a thumbs drives but smaller sized than an SSD drive. It is best suited for on the go new laptop bag etc.
SanDisk Extreme 900 Portable SSD
SanDisk Extreme 900 Portable SSD 1.92TB SDSSDEX2-1T92-G25
- Seriously fast portable storage for high-res photos, videos and graphics-intense files
- Up to 9x the speed of an external hard drive. For Mac compatibility this Hard Drive requires reformatting. Refer to Application Guide for guidance on this
- Up to 1.92TB of SSD-speed storage that's small enough to take with you
- Durable aluminum and rubber design with shock-resistant solid state core
- SanDisk Secure Access encrypts private files. 3-year limited warranty
Access your data quickly using the 1.92TB Extreme 900 Portable SSD from SanDisk. This SSD has a storage capacity of 1.92TB, allowing you to shop a wide range of data files, such as movies, images, songs, records, and more. Additionally, SanDisk Secure Access security software keeps your data files private, only granting accessibility to those whom you provide permission.
Time is cash. With faster transfer speeds than a conventional portable hard drive, the SanDisk 900 Portable SSD allows wait around times and accelerate your workflow, putting your focus back on operating, not waiting. This drive provides top speed when moving large-block-size data, but you need to have the extra components to make the most of the throughput speeds. USB 3.1 Generation 2 is new to industry, and very few computer systems deliver with the interface
Whether you are taking detailed high-res images, creating large graphics files or editing 4K Super HD videos the SanDisk Extreme 900 Portable SSD has a capacity of 1.92TB and can accommodate your data
The SanDisk Extreme 900 Portable SSD provides security to help secure your data files so you can be sure that no one can accessibility your data unless you provide it with to them
Do not let the aluminum exterior fool you. The SanDisk Extreme 900 Portable SSD is both impact-resistant and temperature
- This drive provides top speed when moving large-block-size data, but you need to have the extra components to make the most of the throughput speeds.
- USB 3.1 Generation 2 is new to the industry, and very few computer systems deliver with the interface right now because it is a top quality option.
- Pricing is very high.
- The drive is bulky in comparison to the Samsung T3
If you need a large-capacity external SSD for large successive data files, the SanDisk Extreme 900 provides the highest efficiency available at now. If your workload involves less data, then the efficiency drops due to the inner RAID settings, which is not quick enough to keep up with small-block-size transfers.
VectoTech Fast External SSD Portable Drive
VectoTech Rapid 1TB External SSD USB 3.0 Portable Solid State Drive
- Boost your data transfer speeds with VectoTech Rapid SSD
- Super fast Read/Write speeds up to 450Mb/s
- Shock and vibration resistant
- 2 Year Manufacturer warranty
- Technical support +1 (800) 987-0197
VectoTech Fast portable Strong Indicate Drive Jot accelerate to be able to 450mb/s Tranquil efficiency Light-weight style Vibrations and shock-proof until 1500G within 0. Some m/sec Efficient in enduring jogging temperature ranges beyond -13ºF or 185ºF Faster try time year or so producer support Comes ordered for BROWSER, can be reformatted to MAC (Instructions included)
An SSD-equipped software will start in less than a minute, and often in just a few moments. This is a lifesaver for those constantly on the go and needs to use their devices immediately. The comfort is the best. It keeps up with the interest amount even during regular use of laptop computer systems. It launches and operates apps faster and transfers data files faster to the incredibly quick booting. It will keep you promptly for all your tasks.
The drive’s smooth new aluminum covering, an upgrade from the plastic of the VectoTech, allows it to be shock-resistant. The drive can hold up against up to 1,500 G’s of force and survive a small amount of up to 2 meters. I did try dropping it a several time from above my head to a carpet ground, and the drive was fine. Inside, the VectoTech has a Thermal Guard feature that prevents overheating in extreme temperature ranges.
- Being SSD it does not have all the technical areas of other drives!
- Great for a portable drive.
- Quality seems outstanding
- Quick Read and Write
- Assembled in the USA
- Very Smooth looking!
- Plug and Play
- Excellent Value
- Shock Proof
- Expensive in comparison to eye-catching hard drives.
- Comes in black.
VectoTech is compact, strong, quick and capacious SSD drive. It is an outstanding portable drive to take on the go. You can purchase it easily as its price is reasonably comparing to another drive like Samsun T3.
ADATA SV620 External Solid State Drive
ADATA SV620 240GB USB 3.0 External Solid State Drive (ASV620-240GU3-CTI)
- R/w speed up to 410 MB/s
- Plug & play ; compatible with Android, Mac OS, and Windows
- 256-bit AES encryption
- Free HDD to go and OS to go software
ADATA has fitted the SV620 with a relatively quick SSD, with a claimed study amount of 420MB/s and a written amount of 440MB/s. In our tests, the drive managed to write large data files at 21633MB/s and study them at 297.54MB/s. Our little data files analyze more of a challenge, as the drive has to look up hundreds of data files, rather than streaming data sequentially. The SV620 did well here, too, with write speeds of 147.99MB/s and study speeds of 226.5MB/s.
Rapid Transfer, Simple Share
The ADATA SV620 brings SSD technologies to external hard disks. Complete with a USB 3.0 connector; it provides four times faster speeds in comparison to regular external hard disks. Excellent study amounts 410MB/s and write amount 410MB/s write data transfer from and to the SV620 a cinch. Your ADATA SV620 will be incredibly responsive.
Enjoy all the Advantages of SSD
With no technical elements within, the ADATA SV620 External SSD Drive will not undertake technical deterioration over a chance to be more resilient. It is light little, with a weight of just 88g. It operates cooler, needs far less power, and provides increased shock level of resistance. With the SV620, users can savor the interest amount and comfort of a portable SSD at a very eye-catching cost and without the hassle of buying an enclosed SSD and placing it in an external enclosure.
- The best Speed in both access and transfer are an individual association from HDDs
- Reliability. Inner SSD having a set life span, but this Intel to write operations
- Deployment Cost-the amazing amount benefits allow installing software, spanning RAID arrays
- Consumption – reduced intake than HDDs
- Noise – no disturbance.
- Price per GB is considerably higher
- Available capacities: even the high-capacity SSDs is less than HDDs.
- Some early designs were unreliable from an operator.
This drive is an outstanding SSD drive with quick speed. Its price is also reasonable that you can easily afford. It is shock resistant proves its efficiency for a long time.
Shadow Mini External Portable SSD Drive
Shadow Mini™ External 512GB USB 3.0 Portable Solid State Drive SSD
- Interface: USB 3.0 (Up to 572 MB/Sec). Dimensions: 4.0 x 2.3 x 0.40 Inches
- Rock-solid durability - No moving parts, able to withstand high impact (1500Gs operating shock)
- Aluminum housing provides excellent protection and heat dissipation
- Plug and play compatible with Windows or Mac
- Backed by a 3-year warranty
The Shadow MiniTM USB 3.0 SSD is a high-performance SSD Drive suitable for A/V professionals and power users who require the greatest combination of strength, flexibility, and amount. With no moving areas, it provides accessibility time – suitable for HD movie editing. The trendy style functions an ultra-compact aluminum body system engineered to effectively dissipate warm and offer portable flexibility. The Shadow Small can play speeds of over 400 MB/s when connected to a USB 3.0 slot – up to 10 times faster than USB 2.0. Operate by the USB bus; the Shadow Small needs no external power adaptor or custom drivers, making it the best portable storage remedy.
This SSD hard drive via USB power 3.0 is an outstanding software just right for benefits as well as power customers who necessitate the most distinguished combining of strength, flexibility plus high-speed. Without any effective elements, it presents prompt accessibility time – suitable for high-definition videos editing, etc. The fashionable concept boasts a very little black aluminum physique.
- As Much As 572 MB Per Second Speed
- Connect, Play Congenial Windows or Mac
- Capable To Withstand Effect + Bumps
- Interface USB Power – 3 Years Guarantee
- Simply No Moving Components Internally
- The Ideal Transportable Storage Answer
- Most Dependable Heat Dissipation Offered
- Aluminum Casing Offers Superior Protection
- Sizes Consist of 4.0 x 2.35 x 0.40 Inches
This SSD drive features beautifully as well as no drivers to use with my MacBook air. Do not underestimate this drive by its lightweight. This drive reached ultra-fast speeds, 391.5 MB/second and Write: 425 MB/second! Which is incredible!
VectoTech Fast External Portable SSD Drive
VectoTech Rapid 500GB External SSD USB 3.0 Portable Solid State Drive
- Boost your data transfer speeds with VectoTech Rapid SSD
- Super fast Read/Write speeds up to 450Mb/s
- Shock and vibration resistant
- 2 Year Manufacturer warranty
- Technical support +1 (800) 987-0197
VectoTech Fast Very quickly Strong State’s Drive Backup accelerate with regard to 450mb/s Peaceful efficiency Soothing style Vibrations and Shock level of resistance very much 1500G with 0. a few m/sec Able to enduring operating temperature ranges as a result of -13ºFor 185ºF Faster observe time the few years producer guarantee Comes organized for NOTEBOOK COMPUTER, can be very reformatted regarding MAC.
The VectoTech Fast and its forerunner are the most convenient and quickest USB SSDs on the marketplace. Indeed, the VectoTech Fast I have been using for recent times or so has stored me, so a lot of your time moving data from PC to PC and installing software, I do not know what I would do without it.
At 2.3-inches extensive, 3-inches long, and 0.4-inches thick, the VectoTech Fast Portable SSD Drive is to some extent larger, has a new comfortable soft consistency, and at 1.8 ounces. All nice developments, but I was hoping for just a bit more on the technological innovation front. While the VectoTech Fast Portable SSD Drive is “USB 3.” and has a USB slot, I harbored fantasies that it might be a full-on SuperSpeed+ 10Gbps implementation, not the USB 3.1 Gen 1 SuperSpeed 5Gbps.
- Simple to use, just hook it up in.
- Fast transfer speeds.
- Smooth look
- Shock resistant
- Not in outstanding color
VectoTech Fast is far faster than anything else I have tried, and the slim, extensive profile does not make a lump in the wallet like the regular thumbs drive does.
Intel Portable Solid State Drive
Intel SSDSC2BB300G401 Intel Dc S3500 Series SSDSC2BB300G401 300GB 2.5in SATA3 Solid State Drive (Mlc
1 used from $ 239.00
- MPN: SSDSC2BB300G401
The Intel® SSD DC S3500 Series combines quick, reliable study efficiency with strong data security and low effective power to offer high support high quality for video chat clip, big data analytics, or virtual client applications. Consistently low study latencies of 50µs common along with a tight submission of up to 75,000 input/output per second (IOPS)1 provides a high-performance, effective, and effective SSD made for data center software upgrades. Key pros and cons of this drive offer an Intel® 3rd creation operator, industry-leading 20nm multi-level cell NAND flash technological innovation, complete end-to-end data security, improved power-loss data security.
Intel Evolving Storage Technology
Intel Solid-State Pushes (Intel SSDs) continue to evolve with the improvement the Intel SSD 530 Series aimed at a wide range of consumer platforms such as Ultrabook, conventional desktops, and laptop computer systems, as well as the newest tablets and little kind aspect mobile systems. Intel Solid-State Drive 530 Series offers the finest quality, productive efficiency and low power intake for area conscious processing using M.2, mSATA, and 2.5″ (7mm) kind aspects.
The Intel SSD 530 Series product paves the way for slim and light computer systems by introducing the newest M.2 kind aspect. Intel’s SSD M.2 kind aspect shrinks the total storage space significantly versus conventional 2.5″ kind storage devices. Along with the M.2 kind aspect, Intel SSD 530 Series is also available in mSATA and conventional 2.5″ kind aspects enabling the technological innovation in a wide range of solutions. The Intel SSD 530 series production comes in an extensive array of capacities from 80GB to 480GB.
- Great cost per gigabyte
- Outplays more costly SSDs
- Hits 500 MB/s study speeds
- Speed can drop under large prolonged write loads
- Lower capacity designs are slower
This is the best and fast speed SSD from the most famous company Intel. Intel is number one company in microchip technology, provides the efficient data collecting drive in the market that proved better results comparing to other brands
Key Factors to Consider the SSD Drives:
Here are some main factors to keep in mind when purchasing the SSD drive.
Even in the smallest portable drives, you will likely discover 128GB in proportions, which is enough to area thousands of CD-albums, AAC types or quality MP3. Discharging your songs selection alone from a laptop or computer to a portable drive can be a godsend in freeing valuable area if your laptop has limited storage.
Another popular use of portable storage is for keeping critical backups of your data held on a PC or laptop. You may be able to keep an ideal clone of your entire computer’s inner drive, on standby and prepared when the PC sheds or its drive should malfunction.
Now that USB 2.0 has been expatriate from all storage, we discover USB-3 as the normal for construction, allowing the portable drives play as fast as little drives within will let.
This indicates that when moving your songs or movie selection to or from your PC, you can anticipate around 100MB/s study amount. Compare this with the older drives using USB 2.0, which would limit speeds to around 35MB/s, or only one-third the interest amount. So in tangible terms, your 100GB of media data files would take close to an hour to transfer with USB 2.0, or under 20 minutes using USB 3.0.
A strong exterior will be handy if you want the freedom of being able to throw the disconnected drive with less fear that it will damage the unit, and more importantly, lose your data.
Look out for shock-resistance ratings such as the US military MIL-STD-810F 516.5 (Transit Drop Test). This indicates that it should hold up against being dropped 26 times onto a hard ground, once onto each face, edge, and corner, from a height of 1.22m.
It is difficult to say definitively which producer helps make the most effective hard disks. While there’s a big difference between the technological innovation used in conventional hard disks and SSDs, both have a fixed lifespan, and this is why warranties are relatively brief – two or three years.
Most Important Popular features of the SSD Drives:
As their storage, capacity goes up, and their expenses go down, SSDs or SSD Pushes are becoming more inviting as enterprise data-storage devices for desktop laptop or computer PCs, laptop computer systems and servers. While hard drives are smarter, faster and more effective today than ever before, SSDs have several functions that get them to viable alternatives.
No Moving Parts
SSDs have no rotating platters, moving read/write heads or any other moving areas common to conventional technical hard drives. Instead, data is held in incorporated circuits. An SSD’s solid-state style indicates you do not have to be worried about losing data because of disk crashes or technical failing. SSDs are immune to damage from shocks, lumps, and vibrations. In inclusion, except for cooling fans and optical hard drives, your PC will run silently.
SSDs can identify, retrieve or write data right away. A hard drive, on the other side, has to mechanically move its read/write go across a rotating disk to find data to study or select a spot to avoid wasting it. SSDs, on the other side, use software guidelines to go directly to the location where data is stored.
No moving areas and quick data write and study speeds mean that SSDs draw less power both while operating and while idle. Besides, compared with hard drives, SSDs do not have to keep the disk rotating for a while after data is study or published. This reduces battery intake in laptop computer systems and saves serious cash by reducing your company’s desktop laptop and server power intake.
Like hard drives, SSDs can use out from use eventually. Unlike hard drives, however, SSDs have software that can help predict failing in here, we are at you to take steps to prevent data reduction. Even if an SSD does fail, you can still study data already published to it. In inclusion, SSDs can be configured to avoid wasting data held in their cache storage in case of an unexpected reduction of power.
Which External SSD is Right for You?
Until recently, PC buyers had the very little option for what kind of file storage they got with their laptop, Ultrabook, or Desktop computer. Every other desktop laptop or computer type aspect had a hard drive (HDD). Now, you can configure your entire body system either with an HDD, SSD or in some cases both. However, how do you choose? We explain the alterations between HDDs and SSDs and walk you through the disadvantage and advantages.
HDD and SSD Explained
The conventional rotating hard drive (HDD) is the basic nonvolatile storage on a laptop or computer. That is, it does not “go away” like the data on the software storage when you turn the software off. Hard drives are essentially aluminum platters with an eye-catching covering. That covering stores your data, whether data consists of weather reports from the last century, a high-definition copy of the Star Wars trilogy, or your digital songs selection. A read/write goes on an arm accesses the data while the platters are rotating in a hard drive enclosure.
Due to the different methods the two devices shop data, hard disks are inherently more capacious. HDDs shop data by composing them to a disc via magnetism. Within the HDD, a stack of eye-catching disks, called platters, spin at incredibly quick speeds. These platters have billions of segments where data can be stored. A read/write goes, attached to technical arms, swings over the disks as they are rotating and writes the data to these segments.
It is not hard to discover HDDs has many terabytes storage. In other hand, SSDs do not hold much data and are more costly. When you compare storage capacity, HDDs had more data than SSDs.