Transcend JF920 128GB
Score: 71/100
SanDisk Extreme PRO 512GB Dual
Score: 79/100Rankings
The SanDisk Extreme PRO 512 GB Dual Drive delivers near-advertised sequential speeds, a rugged metal case, and hardware encryption, making it ideal for creators who need fast, secure transfers across USB-C and USB-A devices. Its size, weight, and price keep it from being a pocket-friendly everyday drive.
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 GB | 512 GBbest | |
420 MB/s | 1,000 MB/sbest | |
400 MB/s | 900 MB/sbest | |
60 monthsbest | — | |
| ↓ lower better | 10 gbest | 22.68 g |
| ↓ lower better | 62 mmbest | 80 mm |
| ↓ lower better | 20 mm | 18.3 mmbest |
| ↓ lower better | 7.8 mmbest | 10.7 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 128 GB | 512 GB |
Performance(2) | ||
Read Speed (MB/s) | 420 MB/s | 1000 MB/s |
Write Speed (MB/s) | 400 MB/s | 900 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(5) | ||
Weight (g) | 10 g | 22.68 g |
Length (mm) | 62 mm | 80 mm |
Width (mm) | 20 mm | 18.3 mm |
Height (mm) | 7.8 mm | 10.7 mm |
Material | Aluminum | Metal |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB 3.2 Gen 2 |
Compatibility(1) | ||
Operating System Compatibility | Windows 7+, macOS 9+, Linux Kernel 2.4.2+, ChromeOS, Android (OTG) | 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.
“up to 420 MB/s read speeds”
“a perfect bridge between legacy and modern devices”
“Users appreciate the seamless transfer between MacBook (USB-C) and older Windows PCs (USB-A).”
Professional reviewers commend the near-advertised sequential speeds, robust metal construction, and dual-connector design, while noting random I/O performance falls short of SSDs and the drive can run warm under load.
Everyday users love the fast transfers between USB-C laptops and legacy PCs, appreciate the security of hardware encryption, but mention the tight swivel, warmth during long transfers, and higher cost.
