
SSK Dual USB-C 128GB
Score: 89/100
SanDisk Phone Drive 128GB
Score: 63/100Rankings

The SSK 128 GB dual-head flash drive delivers SSD-level speeds in a rugged metal case, offering USB-C and USB-A 3.2 Gen2 connectivity and extensive OS support. Its durability features make it ideal for creators on the move, though its size and occasional speed throttling near capacity are trade-offs.

The SanDisk 128 GB Phone Drive for Android provides convenient dual-connector access and fast transfer speeds, targeting Android users who need quick backups. Lack of encryption, a plastic body, and occasional quality issues keep it from being a premium offering.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
550 MB/sbest | 100 MB/s | |
520 MB/sbest | 80 MB/s | |
— | 24 monthsbest | |
| ↓ lower better | 37 g | 13.6 gbest |
| ↓ lower better | 78 mm | 70 mmbest |
| ↓ lower better | 20.5 mm | 18 mmbest |
| ↓ lower better | 8.6 mmbest | 11 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 550 MB/s | 100 MB/s |
Write Speed (MB/s) | 520 MB/s | 80 MB/s |
Physical(5) | ||
Weight (g) | 37 g | 13.6 g |
Length (mm) | 78 mm | 70 mm |
Width (mm) | 20.5 mm | 18 mm |
Height (mm) | 8.6 mm | 11 mm |
Material | Zinc alloy | Plastic |
Connectivity(1) | ||
USB Interface | USB-C/USB-A 3.2 Gen2 | USB 3.0 |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, iOS | Windows, macOS |

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

Professional reviewers highlight the SSK SD301 as a rare flash drive that delivers SSD-class throughput while offering a dual-head USB-C/USB-A design, making it ideal for creators who need to move large media files between phones and laptops.
Everyday users consistently praise the drive's blazing fast transfers and sturdy feel, calling it "very handy for video editing" and noting flawless operation with iPhone 15 and MacBook.

“Fast transfer speeds”

“Great build quality”

“Very handy for video editing”




Professional reviewers highlight the drive's optimization for Android, seamless dual-connector design, and automatic backup, while noting the absence of encryption and that the backup feature is Android-only.
Everyday users love the ease of moving files between phones and PCs, the fast speeds, and the automatic backup, but complain about the lack of security features and occasional defective units.