Sony
Sony Alpha a6400 compact mirrorless camera black with 16-50mm and 55-210mm lenses 32GB
$830.99
0.00996236BTC
In stock
SanDisk
SanDisk Extreme 64 GB SDXC 170/80 MB/s SDSDXV2-064G-ANCIN memory card
64 GB SDXC card with 170 MB/s read and 80 MB/s write speeds for UHS-I devices
- TypeSecure Digital (SD)
- Read speeds up to 170 MB/s for fast file transfers
- Write speeds up to 80 MB/s to capture 4K video smoothly
- UHS Speed Class 3 and Video Speed Class 30 ratings guarantee sustained performance
- 64 GB capacity stores thousands of photos and hours of footage
- SanDisk Extreme series built for demanding shooting conditions
Capacity and speed class
This SanDisk Extreme SDXC card provides 64 GB of storage rated for UHS-I U3 and Video Speed Class V30. It targets photographers and videographers who need reliable continuous write performance for 4K capture. The card carries a maximum read speed of 170 MB/s and a write speed of 80 MB/s.
Sustained write behaviour
The V30 rating guarantees a minimum sequential write speed of 30 MB/s during extended recording sessions. This prevents frame drops when the camera buffer fills during long 4K video takes. The UHS-I interface maintains that floor without relying on short burst peaks.
Upgrade path and fit
The card replaces older Class 10 or U1 media that cannot sustain 30 MB/s writes. The jump is worth it when moving to 4K workflows or high-bitrate codecs that exceed slower cards. It is not for users who need UHS-II speeds or capacities above 64 GB.
Highlights
- Read speeds up to 170 MB/s for fast file transfers
- Write speeds up to 80 MB/s to capture 4K video smoothly
- UHS Speed Class 3 and Video Speed Class 30 ratings guarantee sustained performance
- 64 GB capacity stores thousands of photos and hours of footage
- SanDisk Extreme series built for demanding shooting conditions
Specifications
| Brand | SanDisk |
|---|---|
| Type | Secure Digital (SD) |
| Shipping weight | 0.45 kg |
| Package size | 152 × 102 × 25 mm |
Questions about this item
Does the 170 MB/s read speed generate noticeable heat during long video recordings?
The card is rated for 170 MB/s read and 80 MB/s write with UHS-I U3 V30 class; it runs within normal SD card thermal limits during sustained capture.
What host device slot is required to reach the 80 MB/s write rate?
A UHS-I SDXC slot that supports U3 / V30 speeds is needed; older UHS-I or Class 10 only slots will fall back to lower throughput.
Will this 64 GB card work reliably in a camera that only takes SDHC cards?
The card follows the SDXC specification; devices limited to SDHC (32 GB maximum) cannot address its 64 GB capacity.
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