
SanDisk Ultra Dual Drive Luxe 128GB
Score: 76/100
Transcend JF920 128GB
Score: 71/100Rankings

The SanDisk 128 GB Ultra Dual Drive Luxe combines a premium all-metal body with dual USB-C/USB-A connectors and a swivel mechanism, delivering solid read performance and a keyring-ready design. However, its write speeds are modest, it lacks built-in encryption, and it may heat up under heavy use.

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 | |
150 MB/s | 420 MB/sbest | |
— | 400 MB/sbest | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 18 g | 10 gbest |
| ↓ lower better | 44.5 mmbest | 62 mm |
| ↓ lower better | 12.2 mmbest | 20 mm |
| ↓ lower better | 8.6 mm | 7.8 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 150 MB/s | 420 MB/s |
Write Speed (MB/s) | 22-68 MB/s | 400 MB/s |
Physical(5) | ||
Weight (g) | 18 g | 10 g |
Length (mm) | 44.5 mm | 62 mm |
Width (mm) | 12.2 mm | 20 mm |
Height (mm) | 8.6 mm | 7.8 mm |
Material | Aluminum alloy | Aluminum |
Compatibility(1) | ||
Operating System Compatibility | Windows; macOS; Android | Windows 7+, macOS 9+, Linux Kernel 2.4.2+, ChromeOS, Android (OTG) |

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

Professional reviewers highlight the drive's premium metal construction, dual-connector versatility and the convenience of eliminating adapters, but criticize the misleading 400 MB/s claim and the absence of built-in security features.
Everyday users praise the drive's solid build, keyring design and seamless file transfers between phones and computers, especially for backing up photos on the go. Recurring complaints focus on the drive heating up during large transfers, slower-than-expected write speeds, lack of encryption, and a swivel hinge that can become loose over time.

“up to 420 MB/s read speeds”

“a perfect bridge between legacy and modern devices”




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.