Transcend ESD270C 250GB
Score: 68/100
SSK 256GB SSD
Score: 70/100Rankings
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 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.
| Attribute | | |
|---|---|---|
250 GB | 256 GBbest | |
520 MB/s | 550 MB/sbest | |
460 MB/s | 500 MB/sbest | |
| ↓ lower better | 35 g | 27 gbest |
36 monthsbest | — | |
| ↓ lower better | 0 °Cbest | 42.5 °C |
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(3) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen2 |
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 | 27 g |
Form Factor | Credit-card | M.2 2280 |
Power & Connectivity(2) | ||
Power Source | bus-powered | USB |
Included Cable Type | USB‑C to‑C, USB‑C to‑A | USB‑C to USB‑C, USB‑A adapter |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, iOS/iPadOS, ChromeOS | Windows, macOS, Linux, Android, iOS, Xbox, PS4, Smart TVs |
Environmental(1) | ||
Operating Temperature (°C) | 0 °C | 42.5 °C |
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.
Users appreciate the speed and price, yet many report failures, overheating, and data loss, making it a risky choice for critical data.
“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.”
