Transcend ESD270C 250GB
Score: 68/100
SSK Portable SSD 256GB
Score: 53/100Rankings
The Transcend ESD270 250 GB offers a pocket-sized form factor, solid 520 MB/s read speeds and built-in 256-bit AES hardware encryption, making it ideal for users who prioritize security and portability over raw performance. Its slower write speeds and lack of wireless features keep it from being a flagship performer.
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 | | |
|---|---|---|
250 GB | 256 GBbest | |
520 MB/s | 550 MB/sbest | |
460 MB/s | 500 MB/sbest | |
| ↓ lower better | 35 gbest | 43 g |
36 monthsbest | — | |
| ↓ lower better | 0 °Cbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 250 GB | 256 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 520 MB/s | 550 MB/s |
Sequential Write Speed (MB/s) | 460 MB/s | 500 MB/s |
Security(1) | ||
Hardware Encryption | true | false |
Build & Design(2) | ||
Weight (g) | 35 g | 43 g |
Form Factor | Credit-card | Portable |
Power & Connectivity(1) | ||
Included Cable Type | USB‑C to‑C, USB‑C to‑A | USB-A to USB-C, USB-C to USB-C |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, iOS/iPadOS, ChromeOS | Windows, macOS, Linux, Android |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the strong encryption and convenient one-touch backup button, while noting that raw speeds lag behind flagship models and the Android app feels unpolished.
Everyday users love the tiny size, fast backup times and built-in encryption, but they often have to reformat for certain consoles and report occasional hiccups on older USB-A ports.
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.
“Fits in my wallet-perfect for carrying work files.”
“Backed up 100GB of photos in under 4 minutes.”
“Love the encryption feature-feels secure for sensitive documents.”
