Crucial X6 1TB
Score: 34/100
Buffalo SSD-PUT500U3B
Score: 81/100Rankings
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.
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 | | |
|---|---|---|
1,000 GBbest | 500 GB | |
540 MB/s | 600 MB/sbest | |
212 MB/s | 500 MB/sbest | |
| ↓ lower better | 40 g | 17 gbest |
36 monthsbest | 36 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 1000 GB | 500 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 540 MB/s | 600 MB/s |
Sequential Write Speed (MB/s) | 212 MB/s | 500 MB/s |
Build & Design(2) | ||
Weight (g) | 40 g | 17 g |
Form Factor | portable | Pen drive |
Power & Connectivity(2) | ||
Power Source | bus-powered | Bus-powered |
Included Cable Type | USB-C to USB-C | USB‑A to USB‑C adapter |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Android, iOS, consoles | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S |
Technical Specs(1) | ||
Controller | Silicon Motion SM2259XT | Phison PS2251-17 (U17) |
Products in the top-left offer the best value (high score, low price).
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 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.
“smaller than car keys”
“perfect for travel”
“Crucial SSDs have never failed me.”
