
Thkailar USB Flash Drive 512GB Red
Score: 76/100
Techkey USB Flash Drive 128GB
Score: 79/100Rankings

The Techkey 128 GB MFi-certified flash drive offers versatile three-in-one connectivity and a rugged metal build, delivering fast USB 3.0 speeds. Its main drawbacks are the mandatory iOS app and the lack of detailed size/weight specs. Ideal for travelers and iOS users who need a durable, cross-platform backup solution.

The Thkailar 512 GB USB flash drive offers a versatile dual-port design and a robust aluminum alloy body, delivering fast read speeds up to 120 MB/s. Its write performance is modest and it lacks built-in encryption, which may concern security-focused users. Ideal for business travelers needing cross-platform compatibility.
| Attribute | ![]() | ![]() |
|---|---|---|
512 GBbest | 128 GB | |
120 MB/sbest | 80 MB/s | |
— | 40 MB/sbest | |
| ↓ lower better | 91 gbest | — |
1 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 512 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 120 MB/s | 80 MB/s |
Write Speed (MB/s) | 15-55 MB/s | 40 MB/s |
Connectivity(2) | ||
USB Version | USB 3.1 | USB 3.0 |
Interface | USB 3.1 Type-A, USB 3.1 Type-C | USB 3.0, Lightning, USB-C |
General(2) | ||
Warranty (years) | 1 years | 2 years |
OS Compatibility | Windows, Linux, macOS, Android, iOS, others | iOS, Android, macOS, Windows |
Build & Design(2) | ||
Dimensions (L×W×H) (mm) | 66.0x20.3x7.6 mm | 3.94 x 0.03937 x 5.43 inches mm |
Material | Aluminum alloy | Metal |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the Thkailar 512GB drive for its fast read performance, versatile dual-port connectivity, and robust aluminum alloy build that helps manage heat during prolonged transfers. They also appreciate the plug-and-play simplicity and the durability of the metal casing, positioning it as a reliable tool for business travelers and power users.
Everyday users give the drive a high overall rating, indicating general satisfaction with its ease of use, cross-platform compatibility, and solid construction.

“USB 3.0 speed is very fast on computers.”

“NWT, ideal for travel.”



Professional reviewers highlight the drive's very fast USB 3.0 performance and the convenience of having Lightning, USB-C and USB 3.0 ports in a single, rugged package, while noting that the mandatory BLANBOK+ app on iOS adds a setup step and that independent testing is limited.
Everyday users praise the drive for quick, one-click backups and seamless cross-platform file transfers, especially while traveling, and they value the durable metal build; no major complaints are repeatedly mentioned beyond the required app for iOS.