
PNY Turbo Attache 3 256GB Gray
Score: 71/100
Samsung USB-C Flash Drive 512GB Gray
Score: 84/100Rankings

The Samsung Type-C 512 GB provides 400 MB/s reads and 110 MB/s writes in an ultra-compact USB-C form factor with waterproof and shock-proof design. It is limited to USB-C connectivity and lacks a protective cap. Suited for mobile professionals requiring high capacity and portability.

The PNY Turbo Attache 3 is a 256 GB USB-3.0 flash drive delivering solid read/write speeds and a convenient capless sliding collar. Its drawbacks are a heavier plastic body and a short 1-year warranty. It suits office and home users needing reliable portable storage.
| Attribute | ![]() | ![]() |
|---|---|---|
256 GB | 512 GBbest | |
185 MB/s | 400 MB/sbest | |
135 MB/sbest | 110 MB/s | |
| ↓ lower better | 18.1 g | 3.4 gbest |
1 years | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 512 GB |
Performance(2) | ||
Read Speed (MB/s) | 185 MB/s | 400 MB/s |
Write Speed (MB/s) | 135 MB/s | 110 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 1 |
Interface Type | Type-A | USB‑C |
Build & Design(2) | ||
Weight (g) | 18.1 g | 3.4 g |
Dimensions (L×W×H) (mm) | 57.4×10.96×20.33 mm mm | 33.78×16.0×2.54 mm |
General(1) | ||
Warranty (years) | 1 years | 5 years |

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

Consumers echo the professional praise, highlighting the fast read speeds and the convenience of the capless design, while no major complaints appear in the available user-generated content. The drive is generally regarded as a dependable, lightweight option for routine file storage and transfer.

Retailer editors such as B&H Photo and Staples praise the drive's multi-proof construction and its advertised 400 MB/s read performance on USB-C 3.2 Gen 1, emphasizing fast and efficient data transfer for high-capacity needs. However, professional reviews are limited, leaving independent verification of real-world endurance and write performance scarce.


Everyday users consistently highlight the drive's high read speed, tiny form factor, and rugged, water- and shock-proof build as major positives for on-the-go use. The most common criticism revolves around the comparatively slow write speed and the absence of a protective cap.