SanDisk Extreme PRO SDHC/SDXC UHS-II Card – 64GB
A camera that can shoot fast is only as good as the card behind it. If a buffer fills up mid-burst or a card can’t keep pace with 4K footage, shots and frames get dropped regardless of how capable the camera itself is. The SanDisk Extreme PRO SDXC UHS-II 64GB card is built to avoid that bottleneck, rated for sequential read speeds up to 300MB/s and write speeds up to 260MB/s over the UHS-II bus. Reaching those numbers requires a UHS-II-compatible camera or card reader, though the card still works in standard SDHC/SDXC devices at reduced speeds. It’s compact at 31.92 x 23.91 x 2.17mm and just 16.7 grams, and SanDisk rates it to operate across -25°C to 85°C, wide enough to handle both Nairobi’s cooler evenings and the heat of an upcountry shoot. A lifetime limited warranty backs the card, which matters for anyone relying on it for paid work rather than casual use.
Key Features
- Sequential read speeds up to 300MB/s, ideal for quickly offloading large photo and video files
- Sequential write speeds up to 260MB/s, supporting continuous burst-mode shooting and fast video capture
- UHS-II interface, backward-compatible with standard SDHC/SDXC-supported devices at lower speeds
- Wide operating temperature range from -25°C to 85°C, suited to varied climates and travel use
- Lifetime limited warranty, backing long-term reliability for professional and enthusiast use
Technical Specifications
| Specification | Detail |
|---|---|
| Model Number | SDSDXDK-064G-GN4IN |
| Capacity | 64GB |
| Form Factor | SDXC |
| Sequential Read Performance | Up to 300MB/s |
| Sequential Write Performance | Up to 260MB/s |
| Interface | UHS-II |
| Warranty | Lifetime limited warranty |
| Dimensions (L x W x H) | 31.92mm x 23.91mm x 2.17mm |
| Weight | 16.7g |
| Operating Temperature | -25°C to 85°C |
| Non-Operating Temperature | -40°C to 85°C |
| Certifications | CE, FCC, C-Tick/RCM, UKCA, EAC, ICES |
| Host Compatibility | Backward-compatible with SDHC/SDXC-supported devices; UHS-II host or SanDisk UHS-II reader required for full UHS-II performance |
Best Suited For
- Photographers shooting continuous burst sequences, since the 260MB/s write speed helps clear the camera’s buffer faster during rapid-fire shots
- Videographers working with high-resolution or high-frame-rate footage, where fast, sustained write speeds reduce the risk of dropped frames
- Content creators who edit on location, given the 300MB/s read speed shortens file transfer time when offloading footage between shoots
Recommended Action: Confirm your camera or card reader supports UHS-II before purchase, since standard UHS-I devices will not reach the card’s full 300MB/s read and 260MB/s write speeds.
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