Kingston DataTraveler 100 G3 128GB
Score: 40/100
SanDisk Ultra 256GB
Score: 63/100Rankings
The SanDisk Ultra 256 GB USB-A flash drive offers solid capacity and fast read performance with built-in encryption, but its modest write speed and lack of an LED indicator limit its appeal for power users.
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 GB | 256 GBbest | |
114 MB/s | 130 MB/sbest | |
3.14 MB/s | 40 MB/sbest | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 20 g | 8.5 gbest |
| ↓ 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 | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 128 GB | 256 GB |
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 | 8.5 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 praise the Ultra for its solid read speeds, generous capacity, and inclusion of RescuePRO recovery software, noting it as a reliable, stylish mid-range USB-A drive, while cautioning about modest write performance and missing LED.
Everyday users rate the drive highly for ease of use, capacity and speed boost, praising plug-and-play simplicity, but complain about slower write speeds, lack of an LED, and occasional reliability hiccups.
