Transcend JF920 128GB
Score: 71/100
Lexar D400 128GB
Score: 81/100Rankings
The Lexar JumpDrive D400 128 GB offers a metal swivel design, dual USB-C/USB-A connectivity and built-in 256-bit AES encryption, making it a secure and versatile portable storage option. Real-world performance is solid for reads, but write speeds lag and occasional USB-2.0 operation can be a drawback.
The Transcend JetFlash 920 128 GB delivers near-SSD performance in a sleek aluminum case with a retractable slider, making it ideal for creators and travelers needing fast, reliable storage. It lacks encryption and waterproofing, and the FAT32 format may require re-formatting for large files.
| Attribute | | |
|---|---|---|
128 GBbest | 128 GBbest | |
420 MB/sbest | 130 MB/s | |
400 MB/sbest | — | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 10 gbest | 17.35 g |
| ↓ lower better | 62 mm | 60.6 mmbest |
| ↓ lower better | 20 mm | 16.2 mmbest |
| ↓ lower better | 7.8 mmbest | 9.7 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(1) | ||
Read Speed (MB/s) | 420 MB/s | 130 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(5) | ||
Weight (g) | 10 g | 17.35 g |
Length (mm) | 62 mm | 60.6 mm |
Width (mm) | 20 mm | 16.2 mm |
Height (mm) | 7.8 mm | 9.7 mm |
Material | Aluminum | Metal |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB-C/USB-A 3.2 Gen1 |
Compatibility(1) | ||
Operating System Compatibility | Windows 7+, macOS 9+, Linux Kernel 2.4.2+, ChromeOS, Android (OTG) | Android, Windows, macOS |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the JetFlash 920 for near-SSD speeds, premium aluminum build, and suitability for dashcam and content-creation workflows, while noting the absence of encryption and the need to reformat from FAT32.
Everyday users rate the drive highly for its speed and durability, though they commonly mention the FAT32 limitation and occasional slider looseness.
Professional commentary emphasizes the Lexar D400's strong build quality, dual-connector flexibility, and cross-platform support, noting its rigorous testing and inclusion of DataShield encryption as positives. However, reviewers point out that the encryption is software-only and that the product lacks extensive third-party reviews, leaving some uncertainty about real-world performance consistency.
Everyday users generally appreciate the dual-connector design, metal durability, and keyring convenience, often noting that it works straight out of the box with Android phones and Windows PCs. Common complaints revolve around a tight USB-A connector, slower-than-expected write speeds, occasional defective units, and some drives operating at USB 2.0 speeds.
“up to 420 MB/s read speeds”
“a perfect bridge between legacy and modern devices”
“coolest USB flash drive”
