Rankings
The 4 TB SanDisk Extreme PRO Portable SSD uses USB4 to deliver near-internal SSD performance with up to 3800 MB/s reads, while offering rugged IP65 protection and hardware encryption. It shines on Thunderbolt-4 hosts but can fall back to slower speeds on older machines, and its larger size makes it less pocket-friendly.
A rugged, stick-form factor 2 TB SSD designed for PS5/PS4 gamers. It delivers up to 600 MB/s via USB 3.2 Gen 2, offers AES-256 encryption and IP55 protection, but is limited to a USB-A interface and can warm under heavy use.
The Fikwot FP80 1TB offers flagship-class 2000 MB/s speeds, a sturdy aluminum case, and a generous 5-year warranty, making it ideal for creators and gamers with compatible hosts.
The Buffalo 500 GB SSD-PUT combines ultra-compact pen-drive dimensions with fast NVMe-over-UASP performance, but its modest PCMark score and lack of a native USB-C port keep it from being a premium choice.
Buffalo's 1 TB SSD-PUT is a thumb-drive-sized external SSD that delivers solid 600 MB/s read performance in a rugged, MIL-STD-810G package, though it needs a firmware update and uses an adapter for USB-C connectivity.
The Transcend ESD410C 2TB delivers flagship-class 2000 MB/s speeds while offering military-grade durability, hardware encryption and ProRes video support. It's lightweight and versatile but can run hot and needs the right cable to unlock its full bandwidth.
The Lexar ES3 1TB SSD offers ultra-fast USB-C performance in a lightweight metal shell, with software-based 256-bit AES encryption and extensive device compatibility. Its main drawbacks are limited iPhone support and the need to install encryption software.
The SSK 256 GB SSD offers decent speeds and excellent portability at a low price, but reliability concerns and overheating have been reported by users.
The Transcend ESD410 2TB offers flagship-class 2000 MB/s performance, rugged IPX5 and MIL-STD-810G protection, and ProRes video support, but lacks hardware encryption and is heavier than many competitors. It's a solid choice for field creators who value durability over weight.
The WD_BLACK P40 1TB Game Drive delivers flagship-class 2,000 MB/s speeds and a rugged aluminum design with RGB flair, targeting gamers and creators who need fast transfers, but it can overheat and lacks encryption.
The BUFFALO 1TB External SSD is an ultra-light, PlayStation-licensed portable drive offering 600 MB/s read speeds and shock-resistant construction, aimed at gamers and casual users seeking easy plug-and-play storage.
The Transcend 500 GB portable SSD offers fast 1050 MB/s reads, a feather-light aluminum body and full-disk AES-256 encryption, making it ideal for creators on the go. It includes versatile cables but may warm up and the case feels cheap.
UGREEN's 1 TB Portable SSD delivers industry-leading 2,000 MB/s throughput with a dual-cooling aluminum chassis, but its heavier weight and lack of rugged ratings make it less suited for harsh environments.
The Crucial X6 1TB is an affordable, ultra-light portable SSD with decent everyday performance, but its QLC NAND and DRAM-less architecture prevent it from delivering the high sustained speeds some users expect.
| Attribute | | | | | | | | | | | | | | Buffalo SSD-SAO2.0U3B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
500 GB | 1,024 GB | 1,000 GB | 2,048 GB | 1,000 GB | 1,024 GB | 4,000 GBbest | 500 GB | 1,000 GB | 1,000 GB | 2,048 GB | 256 GB | 1,000 GB | 2,048 GB | |
600 MB/s | 2,000 MB/s | 540 MB/s | 2,000 MB/s | 600 MB/s | 1,050 MB/s | 3,800 MB/sbest | 1,050 MB/s | 600 MB/s | 2,000 MB/s | 2,000 MB/s | 550 MB/s | 2,000 MB/s | 600 MB/s | |
500 MB/s | 2,000 MB/s | 212 MB/s | 2,000 MB/s | 500 MB/s | 1,000 MB/s | 3,700 MB/sbest | 950 MB/s | — | 2,000 MB/s | 2,000 MB/s | 500 MB/s | — | 600 MB/s | |
| ↓ lower better | 17 gbest | 78.5 g | 40 g | 65 g | 68 g | 45 g | 172 g | 31 g | 17 gbest | 90 g | 180 g | 27 g | 130.4 g | 17 gbest |
36 months | 60 monthsbest | 36 months | 60 monthsbest | 36 months | 36 months | 60 monthsbest | 60 monthsbest | 36 months | 36 months | 60 monthsbest | — | 60 monthsbest | 24 months | |
| ↓ lower better | — | — | — | — | — | — | — | — | — | 45 °C | — | 42.5 °Cbest | — | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | | | | | | | | | | | | | Buffalo SSD-SAO2.0U3B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Capacity(1) | ||||||||||||||
Storage Capacity (GB) | 500 GB | 1024 GB | 1000 GB | 2048 GB | 1000 GB | 1024 GB | 4000 GB | 500 GB | 1000 GB | 1000 GB | 2048 GB | 256 GB | 1000 GB | 2048 GB |
Performance(3) | ||||||||||||||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 | USB-C | USB4 | USB 3.2 Gen 2 | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 | USB 3.2 Gen2 | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 Type-A |
Sequential Read Speed (MB/s) | 600 MB/s | 2000 MB/s | 540 MB/s | 2000 MB/s | 600 MB/s | 1050 MB/s | 3800 MB/s | 1050 MB/s | 600 MB/s | 2000 MB/s | 2000 MB/s | 550 MB/s | 2000 MB/s | 600 MB/s |
Sequential Write Speed (MB/s) | 500 MB/s | 2000 MB/s | 212 MB/s | 2000 MB/s | 500 MB/s | 1000 MB/s | 3700 MB/s | 950 MB/s | — | 2000 MB/s | 2000 MB/s | 500 MB/s | — | 600 MB/s |
Security(1) | ||||||||||||||
Hardware Encryption | false | false | false | true | false | false | true | true | — | — | false | false | false | true |
Build & Design(3) | ||||||||||||||
Weight (g) | 17 g | 78.5 g | 40 g | 65 g | 68 g | 45 g | 172 g | 31 g | 17 g | 90 g | 180 g | 27 g | 130.4 g | 17 g |
Form Factor | Pen drive | — | portable | — | Thumb-drive | Portable | 2280 | 2.5 inches | portable | Portable | — | M.2 2280 | External Portable SSD | stick |
IP Rating | — | — | — | IPX5 | — | — | IP65 | — | — | — | IPX5 | — | — | IP55 |
Warranty(1) | ||||||||||||||
Warranty Period (months) | 36 months | 60 months | 36 months | 60 months | 36 months | 36 months | 60 months | 60 months | 36 months | 36 months | 60 months | — | 60 months | 24 months |
Power & Connectivity(2) | ||||||||||||||
Power Source | Bus-powered | Bus-powered | bus-powered | USB bus | Bus-powered | Bus-powered via USB | bus-powered | USB bus | bus | — | USB bus | USB | USB | USB bus-powered |
Included Cable Type | USB‑A to USB‑C adapter | USB-C to USB-C | USB-C to USB-C | USB‑C to USB‑C, USB‑C to USB‑A | USB‑A to USB‑C adapter | 2‑in‑1 USB‑C to USB‑C with Type‑A adapter | USB-C to USB-C | USB‑C to USB‑A, USB‑C to USB‑C | USB-C | USB‑C | USB‑C to USB‑C | USB‑C to USB‑C, USB‑A adapter | USB‑A to USB‑C, USB‑C to USB‑C | — |
Compatibility(1) | ||||||||||||||
Operating System Compatibility | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | Windows, macOS, Linux | Windows, macOS, Android, iOS, consoles | Windows, macOS, iOS, Android, PS5, Steam Deck | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | macOS, Windows, Android, iOS, Xbox, PlayStation | Windows 10+, macOS 14+ | Windows, macOS, Linux, ChromeOS, iOS/iPadOS, Android, PS5, PS4, Xbox, Smart TV | Windows, macOS, PS4, PS5 | Windows, macOS, Linux, Xbox Series X/S, PS5, PS4, iPhone 16, tablets | Windows, macOS, iOS, Android, PS5, Steam Deck | Windows, macOS, Linux, Android, iOS, Xbox, PS4, Smart TVs | Windows, macOS, Linux | PS5, PS4, Windows, macOS, Android |
Technical Specs(2) | ||||||||||||||
NAND Type | — | TLC 3D NAND | QLC | 3D NAND | — | — | — | 3D NAND | — | — | 3D NAND | 3D NAND | — | — |
Controller | Phison PS2251-17 (U17) | WD SN560E | Silicon Motion SM2259XT | — | Phison PS2251-17 (U17) | — | — | — | — | SM2320G | — | — | — | — |
Environmental(1) | ||||||||||||||
Operating Temperature (°C) | — | 0-45 °C | — | 0-60 °C | — | — | — | 0-60 °C | — | 45 °C | — | 42.5 °C | — | — |
Products in the top-left offer the best value (high score, low price).
Professional reviewers laud the SSD-PUT for its groundbreaking miniaturization, NVMe-over-UASP performance and excellent price-to-speed ratio, while noting a modest PCMark score, firmware-update requirement, and lack of a native USB-C connector.
Everyday users praise the pocket-size convenience, lightning-fast file transfers, reliable LED indicator and seamless console compatibility, while recurring complaints focus on the optional third-year warranty registration, feel of the retractable connector, and desire for a built-in USB-C port.
“Fits in my pocket like a flash drive but performs like an SSD.”
“Transfers large video files in seconds-way faster than my old HDD.”
“Works perfectly with my PS5-reduced game load times noticeably.”
Crucial X6 is a budget option, but Buffalo provides far superior speed and durability for a modest price increase.
SanDisk Extreme Pro is suited for users wanting professional-grade reliability at a premium, while SSK offers a cheaper, lower-performance alternative.
Pick FP80 for Gen 2x2 interface and robust build; pick Extreme Pro for lighter weight and water resistance.
Professional reviewers praise the P40 for its near-flagship sequential speeds, solid aluminum construction, and superior random write performance, while noting thermal throttling and the lack of hardware encryption.
Everyday users love the lightning-fast transfers, rugged feel, and eye-catching RGB, often highlighting how quickly large game libraries move and the drive survives drops, but recurring complaints focus on heat buildup and Windows-only RGB control.
Professional reviewers consider the X6 a serviceable, budget-friendly portable SSD that works well for everyday tasks but is hampered by its SATA-based internals and DRAM-less design, recommending PCIe-based alternatives for power users.
Consumers appreciate the X6's reliability, pocket-size convenience, and price, though many note that real-world speeds fall short of the advertised 800 MB/s and that performance drops after the cache is exhausted.
Professional reviewers rate the ESD410C as a top-tier portable SSD, highlighting its near-maximum USB 3.2 Gen 2x2 throughput, military-grade durability, and high sustained write speeds.
Everyday users rave about the lightning-quick transfers, rugged build and seamless iPhone ProRes recording, though they note heat buildup and occasional cable confusion.
Professional reviewers praise the SSD-PUT for its miniaturization, solid-state performance in a thumb-drive form factor, and rugged build, but note its modest PCMark score and the need for a firmware update, positioning it as a portable alternative rather than a high-end external SSD.
Everyday users love the tiny size, speed for file transfers, and durability, especially for gaming consoles and travel, while recurring frustrations focus on the required firmware update and the easily misplaced USB-C adapter.
Professional reviewers describe the Lexar ES3 as a high-speed, ultra-portable SSD that delivers near-SSD performance in a credit-card-sized metal shell, commending its fast read speed, built-in encryption and plug-and-play experience while noting its console compatibility and warmth under load.
Everyday users rate the drive highly for its speed, build quality and portability, praising the plug-and-play convenience and security features, with complaints about older iPhone incompatibility and cable length.
Professional reviewers commend the Extreme PRO USB4 SSD for its blazing peak speeds and rugged build, but repeatedly warn that real-world performance hinges on a fully compatible 40 Gbps host. PCWorld and The SSD Review note that without BIOS or firmware updates the drive often falls back to slower USB 3.x rates, and some USB4 implementations cap at 32 Gbps, keeping it slightly behind rivals like the Samsung X5. Nonetheless, on Thunderbolt-4 Macs the drive consistently hits its advertised 3800 MB/s reads.
Everyday users, especially video editors and photographers, praise the drive's speed, plug-and-play ease, and durable design for on-location work. The average rating hovers around 4.5 / 5, though recurring complaints focus on initial connection hiccups, the larger form factor, and occasional speed throttling after the cache is exhausted.
Professional reviewers consider the Transcend ESD265C a top-tier portable SSD, lauding its lightning-fast transfer rates, rugged yet lightweight aluminum chassis, and bundled USB-A and USB-C cables.
Everyday users overwhelmingly praise the speed, premium feel and cross-platform compatibility, while noting warmth, a flimsy case and occasional legacy-port hiccups.
Reviewers praise the drive's strong PlayStation integration and high read speed, but note the cheap plastic build and potential long-term performance inconsistencies.
Everyday users appreciate the speed and lightweight form factor for gaming, while some report fragile feel and occasional failures.
Professional reviewers praise the Ugreen 1TB Portable SSD for its industry-leading 2,000 MB/s throughput, effective dual-cooling design that avoids throttling, and advanced error-correction features, positioning it as a premium alternative to the Samsung T7 Shield and similar high-speed SSDs.
Everyday users consistently commend the drive's lightning-fast transfers, pocket-size form factor, and plug-and-play experience across PCs, consoles and iPhones, while noting the need for a USB 3.2 Gen 2x2 host to unlock full speed and the absence of a transport case.
Professional reviewers view the ESD410 as a premium portable SSD that matches flagship competitors in speed while adding niche ProRes video support and military-grade durability, though they note the lack of hardware encryption as a drawback.
Customers praise the blazing-fast transfers, rugged build and ability to record ProRes directly, while recurring complaints focus on missing hardware encryption, the absence of a bundled cable and the heavier chassis.
Users appreciate the speed and price, yet many report failures, overheating, and data loss, making it a risky choice for critical data.
Professional reviewers praise the FP80 for delivering flagship-class speeds at a competitive price, noting its solid build and long warranty, while warning that full performance requires a USB 3.2 Gen 2x2 port.
Users love the blazing transfer speeds and rugged pocket-size design, but complain about slower performance on the USB-A cable and the lack of encryption.
Professional reviewers consider the BUFFALO SSD-SAO2.0U3B a top-tier external storage option for PS5/PS4 gamers, emphasizing its rugged stick design, reliable 600 MB/s throughput, official console licensing, and strong security with AES-256 encryption.
Everyday users rate the drive highly (average 4.5/5), praising its ease of use, fast load times, tiny footprint and durability for travel.
