SanDisk Extreme PRO SDXC UHS-I Memory Card 64GB
- Memory Storage Capacity: 64 GB
- Secure Digital Association Speed Class: Class 10
- Flash Memory Video Speed Class: V30
- Flash Memory Type: SDXC
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable pick for working photo and video shooters who already own, or plan to buy, a fast card reader capable of showing the 200MB/s speed.
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ASIN: B09X7C7NCZCategory: SD Cards
Overview
A high-speed SDXC card built for photographers and 4K videographers, rated UHS Speed Class 3 (U3), Video Speed Class 30 (V30) and Class 10, with a stated peak read speed of 200MB/s on compatible readers.
The 200MB/s figure needs SanDisk's QuickFlow-capable reader and host device to show up in real transfers; card-slot performance on a camera is governed by the U3/V30 write side instead. Shot speeds are rated up to 90MB/s, which is the number that actually matters for burst photography and sustained 4K recording in-camera.
- 64GB SDXC, UHS-I U3 / V30 / Class 10
- Up to 200MB/s read with QuickFlow reader
- Up to 90MB/s write speed
- Rated for burst-mode 4K UHD shooting
Who it's for
Suits photographers and videographers shooting 4K UHD or burst-mode stills on U3/V30-capable cameras who want headroom for offload speed with the right reader. Casual point-and-shoot users who never move past the in-camera slot will not see the 200MB/s figure.
Pros and cons
- Rated for sustained 4K UHD recording (V30)
- Fast burst-mode shooting at up to 90MB/s write
- Broad compatibility across DSLR and mirrorless bodies
- 200MB/s read figure needs a separate PRO-READER to reach
- No compatibility claim for microSD-only devices
Performance notes
Rated write speeds of up to 90MB/s support V30 sustained video capture, the spec that keeps 4K recording from dropping frames. The 200MB/s read figure is specific to SanDisk's QuickFlow-enabled 64GB-1TB cards paired with a PRO-READER, not a number a standard card slot will hit.
Specifications
| Brand | Sandisk |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.01 pounds |
| Item Dimensions L X W | 1.3 × 0.9 inches |
| Item Dimensions D X W X H | 0.1 × 0.9 × 1.3 inches |
| Capacity & performance | |
| Memory Storage Capacity | 64 GB |
| Secure Digital Association Speed Class | Class 10 |
| Flash Memory Video Speed Class | V30 |
| Media Speed | 90 MB/s |
| Read Speed | 200 megabytes_per_second |
| Construction & materials | |
| Color | Dark Gray/Black |
| Compatibility & installation | |
| Hardware Connectivity | SDXC |
| Compatible Devices | Car Navigation Systems, Computers, Digital Cameras, Home Theatre Devices |
| Included components | |
| Number Of Packs | 1 |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | Limited lifetime |
| Warranty Type | Limited Lifetime |
| Other details | |
| Flash Memory Type | SDXC |
| Number Of Items | 1 |
| Mfr Part Number | SDSDXXU-064G-GN4IN |
Frequently asked questions
Does the SanDisk Extreme PRO 64GB work for 4K video?
Yes, it carries Video Speed Class 30 (V30), rated for sustained 4K UHD recording.
Do I need special hardware to get 200MB/s?
Yes, the 200MB/s read speed requires SanDisk's QuickFlow-compatible PRO-READER; a standard card slot uses the UHS-I ceiling instead.
What is the write speed of this SanDisk Extreme PRO card?
Up to 90MB/s, based on SanDisk's internal testing.