SanDisk Ultra 128GB
Score: 90/100
Qainerly Photo Stick 512GB
Score: 89/100Rankings
The SanDisk 128 GB Ultra USB 3.0 flash drive combines high capacity with fast read speeds and built-in encryption, aimed at everyday users needing portable storage. Its retractable connector and 5-year warranty are positives, while slower write performance and a lack of an LED are notable drawbacks.
The Qainerly 512 GB Photo Stick offers a versatile multi-connector design, decent USB 3.0 speeds and iOS-only password/Touch ID encryption, targeting users who want simple phone backups without cloud services. Android support is less reliable and encryption does not extend to Windows or macOS.
| Attribute | | |
|---|---|---|
128 GB | 512 GBbest | |
130 MB/sbest | 80 MB/s | |
40 MB/sbest | 40 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 30 gbest | 59 g |
| ↓ lower better | 10.7 mmbest | 53.3 mm |
| ↓ lower better | 22.1 mmbest | 38.1 mm |
| ↓ lower better | 7.9 mmbest | 33 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 512 GB |
Performance(1) | ||
Read Speed (MB/s) | 130 MB/s | 80 MB/s |
Connectivity(1) | ||
USB Interface | USB 3.0 | USB 3.0 multi‑connector |
Security(1) | ||
Hardware Encryption | false | true |
Design(1) | ||
Material | Plastic | Zinc alloy |
Physical(4) | ||
Weight (g) | 30 g | 59 g |
Length (mm) | 10.7 mm | 53.3 mm |
Width (mm) | 22.1 mm | 38.1 mm |
Height (mm) | 7.9 mm | 33.0 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the drive's advertised 130 MB/s read speed (often exceeding that in real-world tests) and its retractable connector, noting its thermal stability, but criticize the inconsistent write performance, lack of an activity LED, and lingering reliability worries.
Everyday users appreciate the fast reads, ample 128 GB capacity, and the convenience of built-in encryption, describing it as ideal for photos, videos, and daily backups, though they note slower write speeds and occasional file corruption.
Everyday users praise the fast transfers, one-click backup and premium build, but report Android compatibility problems, occasional app crashes and limited cross-platform encryption.
“Fast and lots of storage”
“Great for photos and videos”
“SecureAccess is great”
