
Kingston DataTraveler 100 G3 128GB
Score: 40/100
SanDisk Ultra Fit 32GB
Score: 72/100Rankings

The SanDisk Ultra Fit 32 GB USB-A flash drive is ultra-compact and delivers fast read performance, making it ideal for static installations like laptops or car audio systems, but its plastic build and limited durability make it unsuitable for heavy handling.

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 | 32 GB | |
114 MB/s | 130 MB/sbest | |
3.14 MB/s | 50 MB/sbest | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 20 g | 1.36 gbest |
| ↓ lower better | 59.9 mm | 29.72 mmbest |
| ↓ lower better | 21.3 mm | 14.22 mmbest |
| ↓ lower better | 10 mm | 5.08 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 128 GB | 32 GB |
Performance(2) | ||
Read Speed (MB/s) | 114 MB/s | 130 MB/s |
Write Speed (MB/s) | 3.14 MB/s | 50 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(4) | ||
Weight (g) | 20 g | 1.36 g |
Length (mm) | 59.9 mm | 29.72 mm |
Width (mm) | 21.3 mm | 14.22 mm |
Height (mm) | 10 mm | 5.08 mm |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB-A 3.2 Gen 1 |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS, Linux, in-car audio, media players |

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 drive's promised read speeds and low-profile design, but criticize the plastic construction and note that sustained write performance can drop to USB 2.0 levels.
Users love the tiny form factor and fast reads, though many complain about heat, fragile plastic, and occasional write-speed throttling.