
SanDisk Extreme PRO 256GB
Score: 100/100
SanDisk Extreme 256GB
Score: 87/100Rankings

The SanDisk 256 GB Extreme PRO SDXC UHS-I offers top-tier read/write performance (200 / 140 MB/s) and rugged protection, making it a strong choice for 4K creators. Its UHS-I bus limits it on cameras that can exploit UHS-II bandwidth, and some users report speed variance with cheaper readers.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
256 GBbest | 256 GBbest | |
200 MB/sbest | 200 MB/sbest | |
140 MB/sbest | 140 MB/sbest | |
| ↓ lower better | 2 gbest | 13.6 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(1) | ||
Speed Class | Class 10 | C10 |
Physical(1) | ||
Weight (g) | 2.0 g | 13.6 g |

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

Professional reviewers praise the blend of high read/write speeds, V30/U3 ratings and rugged build, recommending it for 4K creators while noting UHS-I is slower than UHS-II cards.
Everyday users highlight reliable performance, fast transfers and durability, but note occasional slower-than-advertised speeds and occasional shipping delays.

“Works perfectly with my Sony A7 III and Panasonic GH5”

“Fast transfer speeds save time”

“Durable and reliable”




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.