Amazon Basics USB Flash Drive 512GB
Score: 80/100
Lexar D40E
Score: 78/100Rankings
The Amazon Basics LS25USBC512G1 offers impressive sequential speeds above 400 MB/s in a compact dual-port metal design. Its limitations include modest random-access performance and a short 1-year warranty. It is best for users who need fast large-file transfers across USB-C and USB-A devices.
Lexar's D40E 256 GB drive combines a dual-connector swivel metal housing with 256-bit AES encryption and strong sequential read performance. Write speeds can be inconsistent and the bulkier design reduces pocket-friendliness. Suited for photographers and videographers who value security and durability.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
415 MB/sbest | 183 MB/s | |
421 MB/sbest | 45.8 MB/s | |
| ↓ lower better | 17.96 gbest | 26 g |
1 years | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 512 GB | 256 GB |
Performance(2) | ||
Read Speed (MB/s) | 415 MB/s | 183 MB/s |
Write Speed (MB/s) | 421 MB/s | 45.8 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 2 | USB 3.2 Gen 1 |
Interface | Dual | USB Type-A, USB Type-C |
General(1) | ||
Warranty (years) | 1 years | 3 years |
Build & Design(1) | ||
Weight (g) | 17.96 g | 26 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the LS25USBC512G1 for its impressive sequential performance, scoring 208 on SSD‑tester.com and consistently exceeding the 400 MB/s claim. They also note the robust rotating metal housing as a durability advantage, but caution that random I/O and latency are modest and the small pSLC cache may throttle sustained writes.
Professional reviewers commend the Lexar D40E for its dual-connector convenience, sturdy metal swivel construction, and solid sequential read performance that meets the needs of photographers and videographers. However, they criticize its weak random write speeds and occasional inability to consistently hit the advertised 100 MB/s read rate, noting that the bulkier swivel mechanism makes it less sleek than competing models.
“Convenient swivel for no-cap loss and quick large-file moves.”
“Slower-than-expected writes for videos/documents and occasional compatibility hiccups on older devices.”
Everyday users generally like the plug-and-play ease, large 256 GB capacity, and rugged swivel design, calling it a handy on-the-go solution. Recurring complaints focus on slower-than-advertised write speeds and occasional compatibility issues with older devices.
