Portable SSD Specs Comparison
Portable SSD Catalog
Browse, sort, and compare Portable SSD models side by side — every spec in one table.
| Image | Model | Brand | Year | Cpu | Gpu | Ram | Storage | Interface | Sequential Read | Sequential Write | Ports | Connectivity | Network | Os | Price | Dimensions | Weight | Purpose | Encryption | Operating Temperature | Warranty | Color | Released | Includes |
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Corsair EX400U | Corsair | 2025 | - | - | - | 1TB / 2TB / 4TB NAND Flash (KIOXIA BiCS) | USB4 Type-C (40Gbps) | Up to 4,000 MB/s | Up to 3,600 MB/s | 1x USB4 Type-C (40Gbps, compatible with USB 3.2 Gen 2x2 and Thunderbolt 4) | USB4 (40Gbps) / USB 3.2 Gen 2x2 (20Gbps) / Thunderbolt 4 / USB 3.2 Gen 2 (10Gbps) | USB4 (40Gbps) | Windows 10 or later, macOS 13 or later, iOS/iPadOS 13 or later, ChromeOS, Android | $119.99 (1TB) / $189.99 (2TB) / $382.00 (4TB at Best Buy) | Estimated ~97 x 53 x 14 mm (dimensions not officially published; weight confirmed at 92g) | 92 g (3.24 oz) | Content Creation, 4K/8K Video Editing, iPhone ProRes Recording, Gaming, Data Backup, Professional Photography, Large File Transfer | No hardware encryption (software-based) | 0°C to 70°C | 5-Year Limited Warranty (estimated; standard for Corsair SSDs) | Gunmetal / Silver | Late 2025 | Corsair EX400U Portable SSD, USB4 Type-C to C Cable, Quick Start Guide |
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LaCie Rugged SSD Pro5 | LaCie (Seagate) | 2025 | - | - | - | 2TB / 4TB NAND Flash | Thunderbolt 5 (up to 80Gb/s) | Up to 6,700 MB/s (50GB cache; ~5,000 MB/s sustained after cache) | Up to 5,300 MB/s (50GB cache; ~1,800 MB/s sustained after cache) | 1x USB-C (Thunderbolt 5, 80Gb/s, backward compatible with Thunderbolt 4, USB4 40Gbps, USB 3.2 Gen 2x2, and USB 3.2 Gen 2; USB Type-A not supported) | Thunderbolt 5 (80Gb/s) / Thunderbolt 4 (40Gb/s) / USB4 (40Gbps) / USB 3.2 Gen 2x2 (20Gbps) / USB 3.2 Gen 2 (10Gbps) | Thunderbolt 5 (80Gb/s) | Windows, macOS, iPadOS | $399.99 (2TB) / $599.99 (4TB launch MSRP; currently $1,599.99 at B&H due to 2026 memory shortage) | 98 x 65 x 17 mm | 150 g (0.33 lbs) | 8K/6K Video Editing, VFX Rendering, Content Creation, Professional Photography, Data Backup, Large File Transfer, On-Set Media Storage | No hardware encryption advertised (software-based via LaCie Toolkit) | - | 5-Year Limited Warranty | Blue | January 2025 (announced at CES 2025) | LaCie Rugged SSD Pro5, Thunderbolt 5 (80Gb/s) cable, Rescue Data Recovery Services, LaCie Toolkit backup software, 1-month Adobe Creative Cloud All Apps membership |
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SanDisk Extreme PRO Portable SSD V3 | SanDisk | 2026 | - | - | - | 2TB / 4TB / 8TB NAND Flash | USB4 Gen 3x2 (40Gbps) | Up to 4,000 MB/s | Up to 3,800 MB/s (4TB) | 1x USB-C (USB4 Gen 3x2, 40Gbps, backward compatible with USB 3.2, Thunderbolt 4) | USB4 Gen 3x2 (40Gbps) | USB4 Gen 3x2 (40Gbps) | Windows 10 or later, macOS 11 or later, ChromeOS, Android, iPadOS | TBD — estimated $299 (2TB), $499 (4TB), $899 (8TB); standard Extreme V3 available at €260.99 (1TB) | ~140 x 68.6 x 12 mm (estimated, based on previous-generation USB4 model) | ~170 g (0.37 lbs) — estimated, based on previous USB4 model | Content Creation, 8K Video Editing, AI Development, Professional Photography, Gaming, Data Backup, Large File Transfer, Creative Workflows | AES 256-bit hardware encryption | 0°C to 60°C | 5-Year Limited Warranty | Black / Gray | - | SanDisk Extreme PRO Portable SSD V3, USB4 Gen 3x2 Type-C to C cable, Quick Start Guide, Warranty documentation |
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Samsung Portable SSD T9 | Samsung | 2023 | - | - | - | 2TB (up to 4TB available) | USB 3.2 Gen 2x2 (20Gbps) | Up to 2,000 MB/s | Up to 2,000 MB/s (4TB) / Up to 1,950 MB/s (1TB/2TB) | 1x USB-C 3.2 Gen 2x2 (20Gbps) | USB 3.2 Gen 2x2 (20Gbps) | USB 3.2 Gen 2x2 (20Gbps) | Windows 7 or later, macOS 10.10 or later, Android Lollipop or later | $287.99 (1TB) / $574.99 (2TB) / $1,144.99 (4TB) | 88 x 60 x 14 mm | 122 g (0.27 lbs) | Content Creation, Professional Photography/Videography, Gaming, Data Backup, Large File Transfer, Creative Workflows | AES 256-bit hardware encryption | 0°C to 60°C | 5-Year Limited Warranty | Black | - | Samsung Portable SSD T9, USB Type-C to C cable, USB Type-C to A cable, Quick User Manual, Warranty Statement |
Portable SSD Buyer's Guide
How to pick a fast, rugged external drive without paying for spec-sheet speed you will never actually feel.
1. Quick Verdict: The Cheat Sheet
The single most important thing to know is that your drive cannot outrun the port you plug it into. A 4000 MB/s USB4 drive connected to a plain USB 3.2 Gen 1 port will move data at about 500 MB/s. So match the drive class to your machine: most PC and laptop owners get the best value from a USB 3.2 Gen 2x2 (20 Gbps) drive like the Samsung T9, while current Macs and Thunderbolt-ready PCs justify the faster, pricier USB4 or Thunderbolt models such as the Corsair EX400U, SanDisk Extreme PRO V3, or LaCie Rugged SSD Pro5.
- Back up a laptop or phone and move large media files between machines.
- Own a Mac, a Thunderbolt 4/5 PC, or a recent machine with a 20 Gbps USB-C port.
- Shoot video or do photo work and need fast on-location transfers.
- Want drop, dust, and water resistance for on-the-go use.
- Only plug into an older 5 Gbps or 10 Gbps USB port, where a cheaper 10 Gbps drive is plenty.
- Mostly archive cold files; a slower drive saves you money with no practical speed loss.
- Want a fixed desktop backup basin; an internal SSD or NAS device may fit better.
2. Critical Buying Factors (Prioritized)
There are four speed tiers. USB 3.2 Gen 1 (5 Gbps, ~500 MB/s) is the old floor. USB 3.2 Gen 2 (10 Gbps, ~1000 MB/s) covers most everyday drives like the Samsung T7 and base SanDisk Extreme. USB 3.2 Gen 2x2 (20 Gbps, ~2000 MB/s) is where the Samsung T9 sits. USB4 / Thunderbolt (40 Gbps, over 3000 MB/s) is the top tier, seen on the Corsair EX400U, SanDisk Extreme PRO V3, and the Thunderbolt 5 LaCie Rugged SSD Pro5.
The catch: every tier needs a matching port. The T9 tops out at about 2000 MB/s only when plugged into a certified Gen 2x2 USB-C port, and USB4 drives need a USB4 or Thunderbolt host to reach full speed. A plug-and-play USB4 drive like the Corsair EX400U still works fine on slower ports, just slower.
Bottom line: check the ports on your actual computer before paying for a speed tier the machine cannot deliver.
Advertised numbers are peak sequential reads with a fast cable, empty drive, and ideal host. Real transfers over many small files, sustained writes, and warm drives come in noticeably lower. A 2000 MB/s claim often lands around 1500 to 1700 MB/s in practice, and sustained write speeds drop as the drive thermal-throttles.
For example, the SanDisk Extreme PRO V3 advertises up to 4000 MB/s read but around 3100 MB/s average sustained write. And the Corsair EX400U review notes it is on the slower side for a USB4 drive but cheaper for it: a practical trade-off, not a flaw.
Gimmick to ignore: a giant "4000 MB/s!" number means little if your port, cable, or file mix cannot approach it. Prioritize sustained write figures and honest reviews over the peak marketing number.
The most rugged drives survive drops, dust, and water. Look for an IP rating (first digit = dust, second = water): IP65 resists dust and low-pressure water jets, IP68 can survive deeper submersion. Drop ratings are usually given in meters, for example the LaCie Rugged Pro5 and Samsung T9 claim around 3 m drop resistance.
Rugged doesn't always mean fast: ruggedness and raw speed often trade off. The LaCie Rugged SSD Pro5 pairs Thunderbolt 5 speed with a crush-and-drop-proof aluminum shell, which is why it costs a premium. A cheaper "rugged" drive may hit IP54 (basic splash) and a lower drop height; that is often fine for a desk and a backpack.
Gimmick to ignore: rubber bumpers and a "rugged" look on a drive that lists no concrete IP or drop rating. Demand the numbers.
For a general backup and media drive, 1 TB is the practical floor; 2 TB is the sweet spot for most people, and 4 TB and up suits photographers and videographers. Buy what you project to need in a few years, because external drives are hard to expand.
Watch price per gigabyte: larger capacities almost always cost less per GB, so a 4 TB rarely costs four times a 1 TB. Note that 2026 has seen NAND supply pressure push SSD prices up, so a "good price" today is higher than it was in 2024: shop current listings rather than old street prices.
Gimmick to ignore: claiming 1 TB is fine if you plan 4K video in a year. Capacity is the one spec you genuinely cannot upgrade later.
Hardware encryption (AES-256) with a companion app is worth having for sensitive files: the Samsung T9, for instance, supports AES-256 encryption through Samsung's Portable SSD software. Without built-in security and a dropped-drive accident, your data is readable by anyone.
Thermals matter under sustained writes: aluminum-bodied drives like the EX400U and LaCie Pro5 spread heat and hold sustained speed better than plastic slabs. Form factor is about portability: a 92 g pocket drive vs a 170 g rugged slab are very different in a camera bag. Bonus extras like the EX400U's MagSafe compatibility let it stick to a phone for easy on-the-go offloads.
Gimmick to ignore: a bundled "speed optimizer" app that just registers the drive. Real value is in hardware encryption and firmware updates, not marketing utilities.
3. Top Product Recommendations
Prices are approximate street ranges as of late 2026 and were inflated by NAND supply pressure; always confirm current listings. The four catalog models here cover the mainstream, the affordable USB4 tier, the fastest Thunderbolt tier, and the newest rugged flagship.
Samsung Portable SSD T9 (2 TB around $240 to $320)
- USB 3.2 Gen 2x2 (20 Gbps), up to 2000 MB/s read and write
- AES-256 hardware encryption via Samsung software
- IP65 and about a 3 m drop rating
- Well-rounded: fast, secure, rugged, and widely reviewed as a top all-rounder.
- Encryption and drop protection in a mainstream-priced package.
- Needs a Gen 2x2 port to hit full speed; otherwise you are stuck near 1000 MB/s.
Corsair EX400U (1 TB around $110 to $150, 2 TB around $180 to $260)
- USB4 (40 Gbps), up to 4000 MB/s read and 3600 MB/s write
- Compact, light, and MagSafe-compatible
- Faster and more compatible than a 10 Gbps drive at a modest price
- Real USB4 performance for less than most flagship Thunderbolt drives.
- Small and pocket-friendly, and it sticks to a phone for quick offloads.
- On the slower side versus top USB4 drives under sustained loads.
LaCie Rugged SSD Pro5 (2 TB around $400, 4 TB around $600)
- Thunderbolt 5, up to 6700 MB/s read and 5300 MB/s write
- Rugged aluminum shell, drop and crush resistant
- The fastest external storage tested in its class
- Unbeatable top speed for creative pros moving huge footage.
- Rock-solid build and rugged protection inspectors trust.
- Only reaches full speed on a Thunderbolt 5 host, mostly recent Macs; otherwise you pay for speed you cannot use.
SanDisk Extreme PRO Portable SSD V3 (2 TB around $200 to $280)
- USB4, up to 4000 MB/s read, 3800 MB/s write, 3100 MB/s sustained
- High IP rating for dust and water protection
- Newest-generation rugged flagship, 2 TB/4 TB rolling out through 2026
- Fast sustained writes that hold up during long transfers.
- Genuinely rugged in a competitive package.
- Some large capacities only become available through the second half of 2026.
4. Key Trade-Offs & Pitfalls
What you give up at each price tier
- Under ~$100: 10 Gbps (Gen 2) drives around 1050 MB/s. Fine for backups and small transfers, but a 20 Gbps or USB4 host machine is wasted on them.
- ~$100 to $250: the mainstream sweet spot: 20 Gbps drives like the Samsung T9 and affordable USB4 drives like the Corsair EX400U at 1 to 2 TB. Most buyers end here.
- ~$250 to $400: larger-capacity USB4 drives (2 TB+) and rugged builds; good for serious media work.
- $400 and up: Thunderbolt 5 flagships like the LaCie Rugged Pro5 and large-capacity rugged drives. You pay a real premium for top speed and ruggedness you may not fully use.
Red flags before you check out
- Speed you cannot reach. A USB4 or 20 Gbps drive is wasted on a 5 or 10 Gbps port. Verify your machine's port before paying for the faster tier.
- Peak-number marketing. "4000 MB/s read" rarely survives real sustained writes, small files, and thermals. Read sustained-write reviews, not just the box.
- Vague "rugged" claims. No IP rating and no drop height listed means no real protection guarantee. Demand the numbers.
- Ignoring encryption. A dropped, lost, or stolen unencrypted drive exposes your data. Hardware AES-256 support is worth the small premium.
- Price shock in 2026. NAND supply pressure has pushed SSD prices well above 2024 levels. Budget from current listings, not old deal prices.
- Buying more speed than you need. If you only plug into a 10 Gbps port, a $110 10 Gbps drive beats a $200 USB4 drive with zero practical speed difference for you.