Transcend TS256GSDC300S
Score: 80/100
SanDisk Extreme 256GB
Score: 87/100Rankings
The SanDisk 256GB Extreme PRO UHS-I card offers high read/write performance and rugged durability, making it suitable for 4K video and burst photography. Its lifetime warranty and RescuePRO software add value, though the UHS-I interface caps ultimate speed potential.
The Transcend 256 GB UHS-I SDXC card delivers solid U3/V30 performance, robust durability, and a generous warranty, making it a reliable mid-tier choice for 4K video and high-resolution photography, though its write ceiling is lower than some premium alternatives.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
100 MB/s | 200 MB/sbest | |
40 MB/s | 140 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 10 gbest | 13.6 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Maximum Read Speed (MB/s) | 100 MB/s | 200 MB/s |
Maximum Write Speed (MB/s) | 40 MB/s | 140 MB/s |
Speed Class | Class 10 | C10 |
Warranty(1) | ||
Warranty Period (years) | 5 years | lifetime years |
Physical(1) | ||
Weight (g) | 10.0 g | 13.6 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers from B&H and ProVantage highlight the card's strict adherence to V30 and U3 speed classes, praising its reliability for 4K UHD video and burst-mode RAW photography, while noting the 40 MB/s write ceiling lags behind faster UHS-II competitors.
Everyday users consistently commend the card's dependable in-camera performance, large capacity, and bundled recovery utility, but mention slower off-camera transfer rates, especially with low-quality USB 2.0 readers.
“While performance in-camera was excellent, USB 2.0 transfer speeds were around 19 MB/s, which can make offloading large files time-consuming.”
“The waterproof and shock-proof build gives me confidence shooting outdoors in harsh conditions.”
“Great value for 256 GB with a 5-year warranty and recovery software included.”
Professional reviewers praise the card for delivering reliable 4K video capture and exceptional durability, but caution that the UHS-I interface limits its top-end performance compared to UHS-II cards.
Everyday users rate the card highly for reliability, capacity, and ruggedness, noting flawless 4K recording and survival in harsh conditions, while some complain about slower-than-advertised transfer speeds and occasional older-model shipments.
