SanDisk Ultra 128GB Red
Score: 38/100
SanDisk Ultra Flair 128GB
Score: 64/100Rankings
The SanDisk Ultra Flair 128 GB USB-3.0 flash drive delivers fast read performance in a compact metal body with built-in encryption. It is well suited for read-heavy tasks but its sustained write speed and heat generation limit heavy write workloads.
The Ultra 128 GB USB 3.0 flash drive offers solid read performance and built-in encryption in a compact retractable form factor, targeting everyday users. Write speeds lag behind the advertised maximum, and the slider mechanism may collect dirt over time.
| Attribute | | |
|---|---|---|
128 GBbest | 128 GBbest | |
130 MB/s | 150 MB/sbest | |
100 MB/sbest | 38 MB/s | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 13.64 gbest | 35 g |
| ↓ lower better | 10.41 mm | 6.6 mmbest |
| ↓ lower better | 21.59 mmbest | 42.4 mm |
| ↓ lower better | 56.09 mm | 13.2 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 130 MB/s | 150 MB/s |
Write Speed (MB/s) | 100 MB/s | 38 MB/s |
Security(2) | ||
Hardware Encryption | true | false |
Encryption Algorithm | 128-bit AES | AES |
Compatibility(1) | ||
Compatible Operating Systems | Windows, macOS, PlayStation, Xbox | Windows, macOS, Linux |
Physical(4) | ||
Weight (g) | 13.64 g | 35 g |
Length (mm) | 10.41 mm | 6.6 mm |
Width (mm) | 21.59 mm | 42.4 mm |
Height (mm) | 56.09 mm | 13.2 mm |
Products in the top-left offer the best value (high score, low price).
Reviewers note reliable read speeds and security software but point out the slower write performance and lack of ruggedness compared to higher-end models.
Consumers appreciate the quick reads and encryption, yet many complain about slow writes and occasional file-corruption issues.
“Transfers a full movie in under 40 seconds”
“Great for backups and school projects”
“Love the SecureAccess software”
Professional reviewers praise the Ultra Flair for its near-advertised read speeds, solid metal construction and useful security features, but criticize its slow sustained write speeds, limited cache and the fact that its performance falls short of newer SSD-based USB drives.
Everyday users love the drive's fast reads, durable metal look and cross-platform plug-and-play convenience, but many complain about heating, occasional failures after a year, the tiny form factor leading to loss, and write speeds that don't match advertised claims.
