Kingston DataTraveler 100 G3 128GB
Score: 40/100
SanDisk Ultra 128GB
Score: 49/100Rankings
The SanDisk 128 GB Ultra USB-A flash drive combines a retractable connector with solid read performance and built-in encryption, but its write speed and plastic feel limit its suitability for demanding tasks.
The Kingston DataTraveler 100 G3 128 GB offers solid read performance and a convenient sliding cap, but its write speeds and random performance are extremely low, making it best for occasional read-heavy tasks.
| Attribute | | |
|---|---|---|
128 GBbest | 128 GBbest | |
114 MB/s | 130 MB/sbest | |
3.14 MB/s | 40 MB/sbest | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 20 gbest | 30 g |
| ↓ lower better | 59.9 mm | 10.7 mmbest |
| ↓ lower better | 21.3 mmbest | 22.1 mm |
| ↓ lower better | 10 mm | 7.9 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 114 MB/s | 130 MB/s |
Write Speed (MB/s) | 3.14 MB/s | 40 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(4) | ||
Weight (g) | 20 g | 30 g |
Length (mm) | 59.9 mm | 10.7 mm |
Width (mm) | 21.3 mm | 22.1 mm |
Height (mm) | 10 mm | 7.9 mm |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB-A 3.0 |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS, Android, iOS |
Products in the top-left offer the best value (high score, low price).
Professional reviewers acknowledge the drive's solid sequential read capability but criticize its abysmal write and 4K random performance, giving it an AS SSD benchmark score of 0.
Users appreciate the large capacity and easy sliding cap, but many complain about painfully slow write speeds and inconsistent copying.
“Sleek case and worked very nicely for what I needed it for”
“Does exactly what you expect it to do”
“Great product!!!”
Professional reviewers commend the advertised 130 MB/s read speed and retractable connector, but criticize inconsistent write performance, lack of an LED, and lingering reliability worries from related models.
Everyday users appreciate fast reads, ample capacity and encryption, yet frequently mention slow writes, absence of an LED, and occasional file corruption.
