Kingston DataTraveler 100 G3 128GB
Score: 40/100
SanDisk Ultra Flair 256GB
Score: 72/100Rankings
The SanDisk Ultra Flair 256 GB flash drive delivers fast read speeds and a rugged metal body with built-in encryption, making it a solid everyday storage solution, though its write speed and software requirements may deter some 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 | 150 MB/sbest | |
3.14 MB/s | 60 MB/sbest | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 20 g | 5 gbest |
| ↓ lower better | 59.9 mm | 42.4 mmbest |
| ↓ lower better | 21.3 mm | 13.2 mmbest |
| ↓ lower better | 10 mm | 6.6 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 | 150 MB/s |
Write Speed (MB/s) | 3.14 MB/s | 60 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(5) | ||
Weight (g) | 20 g | 5 g |
Length (mm) | 59.9 mm | 42.4 mm |
Width (mm) | 21.3 mm | 13.2 mm |
Height (mm) | 10 mm | 6.6 mm |
Material | Plastic | Metal |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB-A 3.0 |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS |
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!!!”
Retailer editors highlight the Ultra Flair's fast USB 3.0 performance, sturdy metal construction, built-in encryption and generous 5-year warranty, positioning it as a reliable mid-tier flash drive for everyday use.
Users rate the drive highly for speed, durability and security, but note slower write speeds, occasional early failures, and the need to install SecureAccess software.
