ADATA SE880 500GB
Score: 88/100
SSK Portable SSD 256GB
Score: 53/100Rankings
The ADATA SE880 500 GB delivers flagship-class 2 GB/s speeds in a lightweight magnesium-alloy package, offering broad compatibility but lacking encryption and ruggedness.
The SSK 256 GB Portable SSD delivers fast USB 3.2 Gen 2 performance in a lightweight aluminum enclosure, with broad compatibility but limited capacity and no built-in encryption.
| Attribute | | |
|---|---|---|
500 GBbest | 256 GB | |
2,000 MB/sbest | 550 MB/s | |
2,000 MB/sbest | 500 MB/s | |
| ↓ lower better | 31 gbest | 43 g |
60 monthsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 500 GB | 256 GB |
Performance(3) | ||
Interface | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 |
Sequential Read Speed (MB/s) | 2000 MB/s | 550 MB/s |
Sequential Write Speed (MB/s) | 2000 MB/s | 500 MB/s |
Build & Design(2) | ||
Weight (g) | 31 g | 43 g |
Form Factor | External SSD | Portable |
Power & Connectivity(1) | ||
Included Cable Type | USB‑C to USB‑C, USB‑C to USB‑A | USB-A to USB-C, USB-C to USB-C |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, Xbox, PlayStation, iPad, iPhone | Windows, macOS, Linux, Android |
Technical Specs(1) | ||
NAND Type | TLC | 3D NAND |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the blistering 2,000 MB/s burst speeds and compact chassis, while noting the drop in sustained write performance and the need for a Gen2x2 host.
Everyday users love the lightning-quick transfers and pocket-size design, but complain about speed drops on large files and the absence of encryption.
Professional reviewers note performance comparable to premium models like the Samsung T5 while keeping costs low, praising the aluminum enclosure and dual cables but pointing out the lack of encryption as a drawback.
Everyday users rate the drive highly for speed and portability, though they mention the modest 256 GB size and occasional write-speed throttling.
“Extremely fast read/write speeds up to 2,000 MB/s”
“Ultra-compact and lightweight (31 g)”
“No hardware encryption - felt insecure for sensitive files”
