
PNY Turbo Attache 3 256GB Gray
Score: 71/100
Samsung USB-C Flash Drive 512GB Gray
Score: 81/100Rankings

The Samsung Type-C 512 GB flash drive delivers fast 400 MB/s reads in an ultra-compact, rugged metal-cased form factor. Its drawbacks are a modest 110 MB/s write speed and a USB-C-only interface that may need an adapter for older devices. Best suited for mobile professionals who prioritize portability and durability over sustained write performance.

The PNY Turbo Attache 256 GB USB 3.0 flash drive offers a sizable 256 GB capacity with fast 185 MB/s read speeds and a convenient capless sliding design. Its write speed is modest and it lacks advanced features such as encryption or waterproofing. Ideal for office and home users needing portable high-capacity 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 A | Type-C |
General(1) | ||
Warranty (years) | 1 years | 5 years |
Build & Design(2) | ||
Weight (g) | 18.1 g | 3.4 g |
Dimensions (L×W×H) (mm) | 57.4 x 10.96 x 20.33 mm | 2.54x16.0x33.78 mm |

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

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, which some feel leaves the connector vulnerable.

