Whether or not you wish to again up the info in your PC, switch movies out of your Mac or offload just a few video games out of your PlayStation 5, a transportable SSD is a fast and straightforward option to increase your storage. These little bricks could value greater than conventional laborious drives, however they’re considerably quicker, lighter and extra dependable. Determining the perfect moveable SSD for you, although, isn’t so simple as simply choosing the one with the bottom worth or essentially the most house. (Nicely, it can be, however that wouldn’t be very environment friendly.) To assist, we’ve weeded via the moveable SSD market, examined a bunch of contenders and sorted out which of them provide essentially the most worth. Yow will discover our prime picks beneath, plus an outline of what to know before you purchase.
Desk of contents
Greatest exterior SSDs for 2025
Different exterior SSDs we examined
The pre-built OWC Express 1M2 is a premium-feeling USB4 SSD that’s roughly as quick because the ADATA SE920, nevertheless it’s bigger and considerably dearer as of this writing.
For those who’re within the comparatively small group with a PC that helps USB 3.2 Gen 2×2 however not Thunderbolt or USB4, the Crucial X10 Pro is basically a quicker model of our prime decide. The Lexar SL600 is a bigger however barely faster possibility, whereas the Lexar SL500, Kingston XS2000 or Samsung T9 might additionally work for those who see them on low cost. As a reminder, although, drives like these are aimed primarily at content material creators and different professionals, and you need to be sure you received’t improve to a tool with a quicker USB interface anytime quickly.
The Samsung T7 Shield has a conveniently rugged design with a rubberized, IP65-rated shell. It additionally comes with each USB-C and USB-A cables. However it was constantly slower than the X9 Professional and XS1000 in our benchmark exams, plus it has a shorter three-year guarantee.
The Silicon Power PX10 is an particularly inexpensive USB 3.2 Gen 2 mannequin. Its peak speeds weren’t too far off the X9 Professional or XS1000 in artificial benchmarks, however it may well get distractingly scorching and its sustained writes are markedly worse. It took 50 seconds longer to maneuver our 70GB customized check folder to this drive in comparison with the X9 Professional, for instance.
The Crucial X6 is one other low-cost possibility that’s a superb bit slower than our prime picks. It’s restricted to a three-year guarantee and lacks an IP ranking as nicely. It’s not a horrible possibility for the fundamentals, however there’s little purpose to get it over the XS1000 when their costs are related.
The OWC Envoy Pro FX is well-built and helps Thunderbolt 3 and USB 3.2 Gen 2, nevertheless it’s a smidge slower than the SE920 and Categorical 1M2, and it’s a lot pricier than the previous.
What to think about earlier than shopping for an exterior SSD
Capability
The very first thing to determine earlier than shopping for a transportable SSD is simply how a lot space for storing you want. A lot of the drives we thought of for this information can be found in capacities starting from one to 4 terabytes, although loads of smaller and bigger choices exist.
There’s no hard-and-fast rule for which measurement is “greatest” — that’ll in the end rely in your finances and what precisely you’re trying to stash. However typically, it’s higher to overcompensate than underdo it. No one desires to be compelled into shopping for a second drive as a result of they stuffed the primary one up too rapidly. For those who’re backing up a PC, a superb rule of thumb is to purchase an exterior SSD with twice as a lot house as your pc’s inner storage. This fashion, it can save you no less than one full backup whereas additionally having room for extra knowledge. If you wish to retailer a bunch of PlayStation or Xbox video games with large set up sizes, chances are you’ll want more room. For those who simply wish to again up a small assortment of information, chances are you’ll be higher off saving your money and simply getting a smaller USB flash drive as a substitute, which aren’t fairly the identical because the exterior SSDs we examined for this information.
Worth
On the whole, you get a greater price-per-gigabyte ratio the additional you go up the capability ladder. As of this writing, the 1TB Samsung T9 is priced at $130, or $0.13 per gigabyte (GB), whereas the 4TB version is on the market for $297 or $0.07 per GB. That technically makes the bigger mannequin a greater “worth,” however not everybody must pay that rather more upfront.
SSDs in the identical velocity class are likely to not fluctuate too wildly by way of efficiency, so a part of our decision-making for this information got here right down to which of them are sometimes the most affordable. However costs can fluctuate over time; for those who see that one in all our prime picks is priced method larger than a comparable honorable point out, be at liberty to get the latter. At this time limit, prices are broadly trending upwards.
Velocity and USB interface
Nearly all exterior SSDs are considerably quicker than mechanical laborious disk drives (HDDs), so that you’ll save time ready for information to switch and video games to load it doesn’t matter what. Inside the market, nonetheless, there are distinct efficiency tiers. These are outlined largely by the USB interface a drive helps. Whereas all the SSDs we thought of for this information can join over USB-C, some USB-C connections can provide quicker switch speeds than others. Sorting via this could get actual complicated actual quick, so we’ll attempt to put it in easy phrases.
You’ll be able to basically divide as we speak’s crop of moveable SSDs into completely different segments. On the very prime are drives that make the most of the (comparatively) new Thunderbolt 5 normal, which has a theoretical most switch fee of 80 gigabits per second (Gbps). (You might even see it promote speeds as much as 120 Gbps, however that increase doesn’t apply to storage units.) However moveable SSDs that support this tech solely simply began to trickle out towards the top of 2024, and the marketplace for units with Thunderbolt 5 ports continues to be fairly limited, with essentially the most notable exceptions being Apple’s top-end Macs with a M4 Professional or M4 Max chip.
Thunderbolt 5 is constructed on a spec known as USB4, which may technically attain as much as 80 Gbps as nicely however is extra sometimes out there in a taste that tops out at 40 Gbps. Moveable SSDs based mostly on that normal began to roll out towards the top of 2023 however are nonetheless comparatively rare. The older Thunderbolt 3 and Thunderbolt 4, which different high-end exterior SSDs proceed to make use of, help the identical 40 Gbps most.
A third model of USB4, in the meantime, maxes at 20 Gbps, as does an older but extra often used normal known as USB 3.2 Gen 2×2. Under that’s USB 3.2 Gen 2, which maxes at 10 Gbps. Then there’s USB 3.2 Gen 1, which is capped at 5 Gbps. Lastly, we’ll bundle collectively SSDs that use older requirements and aren’t price contemplating right here.
To make this straightforward: For on a regular basis of us, a superb USB 3.2 Gen 2 drive is the candy spot between fast-enough efficiency, wide-enough compatibility and cheap-enough worth, so these make up our major suggestions above. For those who work in a artistic area or don’t thoughts paying additional to shave seconds off your massive file transfers, although, a “higher-tier” mannequin would make sense. Nonetheless, be aware that precise computer systems that make the most of USB 3.2 Gen 2×2 aren’t tremendous frequent — no Mac helps it, for one — and the interface is successfully being changed by USB4.
On the whole, your chain is simply as robust as its weakest hyperlink: In case your pc solely has USB 3.2 Gen 2 ports, for instance, you might nonetheless use a Thunderbolt SSD, however you received’t get past Gen 2 speeds. Be sure you know what you’re working with before you purchase.
As a refresher, storage units are broadly measured by way of learn and write speeds. The previous refers to how lengthy it takes to entry one thing from the drive; the latter, how lengthy it takes to avoid wasting one thing to it. From there, you may break these metrics into sequential and random efficiency. Sequential speeds are likely to matter extra with moveable SSDs, since most individuals use them to avoid wasting or entry lengthy, fixed streams of information resembling a bunch of high-res pictures. Random speeds can be necessary if you wish to run video video games off the drive, since that’d contain studying and writing smaller, extra scattered information. Both method, how nicely an SSD can maintain its efficiency with prolonged use can also be vital.
Different efficiency elements and enclosures
A contemporary moveable SSD’s speeds aren’t nearly its USB interface, although. Its efficiency may rely upon how superior its controller is, whether or not it has a local USB flash controller or a separate bridge chip to speak with a number machine, the type and high quality of NAND flash reminiscence it makes use of, whether or not it has a DRAM cache or it’s DRAM-less, and extra.
We’re simplifying issues, however listed below are some fast suggestions: Drives with triple-level cell (TLC) reminiscence aren’t as low cost as quad-level cell (QLC) SSDs, however they’re usually extra dependable and so they provide higher write efficiency. Having a devoted DRAM cache helps for those who plan to hit your drive with extra intense, sustained workloads, however is probably not price the additional value for most individuals. Some fashions with native flash controllers could not carry out in addition to these with a bridging chip, relying on the SSD inside, however they sometimes draw much less warmth and are bodily smaller. All of that is to say that an exterior SSD’s speeds aren’t fairly as simple as what the producer chooses to promote on the field.
It’s additionally price remembering that you would be able to flip an inner SSD into a transportable resolution with a superb enclosure. When you’ve got a spare drive and don’t thoughts going the DIY route, this is usually a cheaper and extra versatile resolution, although we’ve caught to pre-built fashions for this information for the sake of simplicity.
Dimension, sturdiness, endurance and guarantee
Most moveable SSDs are impressively small and lightweight, so that they received’t be troublesome to tuck in a bag (or perhaps a pocket) and tackle the go. We be aware above if any drive is bulkier than normal.
Nothing we’re speaking about issues in case your drive can’t final in the long run. It’s laborious to definitively say which exterior SSDs are essentially the most dependable, however we scoured via person opinions and suggestions whereas researching this information to make sure none of our picks present a sample of catastrophic errors. If there was an excessive amount of smoke round a specific mannequin, we steered clear. We dominated out sure drives from SanDisk and Western Digital, as an example, after stories from Ars Technica and The Verge famous a problem that led to knowledge loss (and lawsuits) in 2023.
That stated, one of many large causes you’d purchase an SSD typically is its superior sturdiness. As a result of it has no shifting mechanical components inside, an SSD has far fewer avenues to failure than an exterior laborious drive. You continue to don’t wish to be careless with them, however an unintended drop shouldn’t be the top of the world.
Some moveable SSDs construct on this inherent ruggedness with plastic or rubberized casings and extra strong waterproofing. These aren’t obligatory for everybody, however for those who’re a frequent traveler or somebody who typically works outside, there are alternatives for you.
Nonetheless, all drives can fail. When you’ve got any kind of knowledge you’d be distraught to lose, you need to again it up recurrently, then make a second backup, ideally with a cloud service. Alongside these protecting strains, we additionally took be aware of the guarantee coverage for every drive we examined. Nearly all of them are backed for both three or 5 years; after all, longer is best.
Encryption and software program
It’s not unusual to retailer delicate knowledge on a transportable SSD, so some fashions provide additional security measures like hardware-based encryption — i.e., direct scrambling of information saved on the drive itself — built-in keypads and fingerprint readers to guard towards unauthorized entry if the drive is misplaced or stolen. Whereas not prime necessities, perks like these are actually good to have. Some SSDs additionally include companion software program to additional handle the drive. The very best of these may be useful to have round, however we wouldn’t name them important.
How we check exterior SSDs
Sadly, we didn’t have entry to a tool that may make full use of USB 3.2 Gen 2, USB 3.2 Gen 2×2 and Thunderbolt/USB4 speeds interchangeably, so we needed to cut up our testing throughout a number of units, together with an M1 Professional MacBook Professional and an Alienware gaming PC working Home windows 11. Due to this, we primarily in contrast the moveable SSDs inside every “class” towards each other. Earlier than switching OSes, we reformatted every drive to every platform’s normal file system format: APFS for macOS and NTFS for Home windows.
After researching which SSDs had sufficient constructive suggestions to be price testing within the first place, we put 13 drives via a variety of artificial and “real-world” benchmark exams. On Home windows, these included CrystalDiskMark, PCMark 10’s Information Drive Benchmark and 3DMark’s gaming-focused Storage Benchmark. On macOS, we used AmorphousDiskMark (successfully a Mac model of CrystalDiskMark), BlackMagic Disk Speed Test and ATTO Disk Benchmark.
We additionally timed how lengthy it took for every drive to learn and write a customized 70GB folder stuffed with roughly 11,500 completely different information, together with pictures, movies, music information, PDFs and different massive and small knowledge sorts scattered throughout quite a few subfolders. We carried out a number of passes for every check to keep away from irregularities, and we stored monitor of every SSD’s warmth ranges over the course of the entire suite. Our course of wasn’t an ideal science, nevertheless it gave us a basic sense of how every drive compares to different fashions in its worth and efficiency vary.
Current updates
February 2025: We’ve checked to make sure the pricing information and hyperlinks on this information are nonetheless correct. We’ve additionally added particulars on the (comparatively) new Thunderbolt 5 interface, which has been applied in a pair current moveable SSDs just like the OWC Envoy Ultra and LaCie Rugged SSD Pro5. We’ll look to incorporate testing notes for these for our subsequent replace, as they ought to be quicker than the ADATA SE920, our present premium decide, albeit for a a lot larger worth. For now, although, our prime picks stay the identical.
October 2024: We’ve taken a sweep via this information to make sure all pricing and availability information continues to be appropriate. Our suggestions are unchanged.
This text initially appeared on Engadget at https://www.engadget.com/computing/equipment/best-portable-ssd-120043652.html?src=rss
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