
Samsung USB-C Flash Drive 512GB Gray
Score: 84/100
SanDisk Extreme PRO 512GB
Score: 89/100Rankings

The SanDisk Extreme PRO 512 GB USB-A flash drive delivers top-tier performance with up to 1000 MB/s read and 900 MB/s write speeds in a lightweight aluminum body. Its speed is lower than newer Gen 2 USB-C drives and it only offers a USB-A connector, which may limit compatibility with modern devices. Suited for professionals needing fast, high-capacity portable storage.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
512 GBbest | 512 GBbest | |
400 MB/s | 1,000 MB/sbest | |
110 MB/s | 900 MB/sbest | |
| ↓ lower better | 3.4 gbest | 27.22 g |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 400 MB/s | 1000 MB/s |
Write Speed (MB/s) | 110 MB/s | 900 MB/s |
Connectivity(1) | ||
Interface Type | USB‑C | USB‑A |
Build & Design(2) | ||
Weight (g) | 3.4 g | 27.22 g |
Dimensions (L×W×H) (mm) | 33.78×16.0×2.54 mm | 71.12×21.08×10.92 mm mm |
General(1) | ||
Warranty (years) | 5 years | lifetime years |

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.




Professional reviewers commend the Extreme PRO 512GB USB-A for its solid-state reliability, fast 420/380 MB/s performance, and useful RescuePRO recovery software, while noting its speed falls short of newer Gen 2 models and its plastic build feels less premium.
Consumers generally praise the drive's rapid backups, large capacity, and cross-device compatibility, though the scarcity of reviews leaves some buyers uncertain about long-term durability.