
SanDisk Ultra Flair 128GB
Score: 61/100
SamData 128GB USB
Score: 49/100Rankings

The SanDisk Ultra Flair 128 GB USB 3.0 flash drive delivers strong read performance and a rugged metal body, complemented by built-in 128-bit AES encryption. While it offers a 5-year warranty in marketing, the spec lists a 1-year warranty and sustained write speeds are modest, with heat buildup under heavy use.

SamData's 128 GB USB 2.0 flash drive is a budget-oriented, metal-cased device with an LED indicator and basic OTG compatibility. While it offers decent durability, its slow transfer speeds and lack of security features limit its suitability for high-performance tasks.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
— | 20 MB/sbest | |
15 MB/sbest | 10 MB/s | |
12 monthsbest | 12 monthsbest | |
| ↓ lower better | 35 g | 10 gbest |
| ↓ lower better | 6.6 mmbest | 58 mm |
| ↓ lower better | 42.4 mm | 19 mmbest |
| ↓ lower better | 13.2 mm | 10 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 156-165 MB/s | 20 MB/s |
Write Speed (MB/s) | 15 MB/s | 10 MB/s |
Physical(4) | ||
Weight (g) | 35 g | 10 g |
Length (mm) | 6.6 mm | 58 mm |
Width (mm) | 42.4 mm | 19 mm |
Height (mm) | 13.2 mm | 10 mm |
Connectivity(1) | ||
USB Interface | USB 3.0 | USB-A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS, Linux, Android |

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

Professional reviewers praise the Ultra Flair for its near-advertised read speeds, solid metal construction and useful security features, but they criticize its slow sustained write speeds, limited cache and the fact that its performance falls short of newer SSD-based USB drives. The consensus is that it's a solid mid-tier option for read-heavy tasks but not suited for heavy write workloads.
Everyday users love the drive's fast reads, durable metal look and cross-platform plug-and-play convenience, especially for transferring videos and expanding console storage. However, many complain about the drive heating up, occasional failures after a year, the tiny form factor leading to loss, and write speeds that don't match the advertised claims.

“Great for video projects”

“Works perfectly with MacBook and Windows”

“Durable and stylish”



Professional reviewers note SamData as a low-cost alternative to premium USB sticks, recommending established brands for better speed and reliability.
Everyday users appreciate the affordability and basic functionality, but complain about the slow USB 2.0 speeds and occasional authenticity doubts.