SanDisk Ultra Dual Drive 128GB
Score: 39/100
SanDisk Ultra Flair 256GB
Score: 74/100Rankings
The SanDisk Ultra Flair 256 GB USB-3.0 flash drive combines fast read performance with a rugged metal case and built-in encryption, making it a reliable choice for everyday portable storage. Write speeds are decent but not SSD-level, and encryption relies on optional software.
The Ultra Dual Drive 128 GB offers a sturdy metal body with both USB-A and USB-C connectors, delivering fast reads and a convenient keyring loop. Lack of native encryption and modest write speeds make it better suited for occasional transfers than heavy-write tasks.
| Attribute | | |
|---|---|---|
128 GB | 256 GBbest | |
150 MB/sbest | 150 MB/sbest | |
30 MB/s | 60 MB/sbest | |
5 yearsbest | 5 yearsbest | |
| ↓ lower better | 9.07 g | 5 gbest |
| ↓ lower better | 9.4 mmbest | 42.4 mm |
| ↓ lower better | 38.1 mm | 13.2 mmbest |
| ↓ lower better | 20.07 mm | 6.6 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 256 GB |
Performance(1) | ||
Write Speed (MB/s) | 30 MB/s | 60 MB/s |
Connectivity(1) | ||
USB Interface | USB 3.1 Gen 1 | USB 3.0 |
Compatibility(1) | ||
Compatible Operating Systems | Windows, macOS, Android | Windows, macOS |
Physical(4) | ||
Weight (g) | 9.07 g | 5 g |
Length (mm) | 9.40 mm | 42.4 mm |
Width (mm) | 38.10 mm | 13.2 mm |
Height (mm) | 20.07 mm | 6.6 mm |
Products in the top-left offer the best value (high score, low price).
Reviewers appreciate the dual-connector design and premium metal chassis, but note the absence of built-in encryption and occasional speed inconsistencies.
Users praise the fast photo transfers and premium feel, while complaining about slower writes and a swivel that can become loose.
“Perfect for freeing up space on my phone-transfers photos in seconds.”
“Love the metal build-it feels premium and survives daily pocket carry.”
“Works flawlessly with my MacBook Pro and Samsung Galaxy.”
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.
Everyday users rate the drive highly for speed, durability and security, often calling it a great value. The most common complaints revolve around slower write speeds, occasional early failures, and the need to install SecureAccess software for password protection.
