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Small rectangular SDXC card, black with gold contacts

Kingston Technology Corp.

Kingston Technology Corp. SDR2/64GB 64GB SDXC UHS-II V90 memory card

SKU CH-M20H-32D3N MPN SDR2/64GB

64 GB SDXC card rated UHS-II, U3, Class 10 and V90 with 300 MB/s read and 260 MB/s write for 4K and 8K capture

  • TypeSecure Digital Extended Capacity (SDXC)
  • Capacity64GB
  • Speed Class RatingUHS-II / U3 / Class 10 / V90
  • Read Speed300MB/s
  • Write Speed260MB/s
  • FeaturesUltimate speeds to support professional camera use Capture 4
  • UHS-II V90 rating sustains 260MB/s write for 8K cinema capture
  • 300MB/s read speed offloads 64GB of footage in seconds
  • U3 Class 10 compliance guarantees no dropped frames in burst mode
  • Canvas React Plus series built for professional camera workloads
  • SDXC 64GB capacity stores hours of 4K/8K Ultra-HD content

Professional SDXC Card for 4K and 8K Workflows

The Kingston Canvas React Plus SDR2/64GB is a 64GB SDXC memory card built for professional cameras that record 4K and 8K Ultra-HD video. Its UHS-II interface, U3 and V90 ratings support sustained high-speed capture without dropping frames during burst shooting or cinema recording sessions.

UHS-II Bus Limits and Sustained Write Requirements

The UHS-II bus enables read speeds up to 300MB/s and write speeds up to 260MB/s, but real-world throughput depends on the host device supporting the same standard. If the camera or reader only implements UHS-I, speeds will fall to that lower ceiling and the V90 sustained write guarantee cannot be maintained.

Simple Installation With Compatibility Caveats

The card inserts like any standard SDXC media, but full performance requires a UHS-II camera slot and a UHS-II card reader for offloading. Common issues include using older readers that bottleneck transfer rates or cameras that cannot sustain the V90 write class, leading to dropped frames or recording stops.

Highlights

  • UHS-II V90 rating sustains 260MB/s write for 8K cinema capture
  • 300MB/s read speed offloads 64GB of footage in seconds
  • U3 Class 10 compliance guarantees no dropped frames in burst mode
  • Canvas React Plus series built for professional camera workloads
  • SDXC 64GB capacity stores hours of 4K/8K Ultra-HD content

Specifications

BrandKingston
SeriesCanvas React Plus
ModelSDR2/64GB
TypeSecure Digital Extended Capacity (SDXC)
Capacity64GB
Speed Class RatingUHS-II / U3 / Class 10 / V90
Read Speed300MB/s
Write Speed260MB/s
FeaturesUltimate speeds to support professional camera use
Capture 4K/8K Ultra-HD high-speed shots without dropping frames
Top-of-the-line performance for professional content creators
Durable

Questions about this item

Should I pick the 64GB Canvas React Plus or a different capacity for 8K video?

The 64GB model gives you the full V90 sustained write speed needed for 8K capture; larger capacities in the same series deliver identical speed ratings, so choose capacity based on how much footage you want per card.

What does the 260MB/s write speed mean when I am recording 8K in-camera?

It guarantees a minimum sustained write of 90MB/s (V90) with peaks up to 260MB/s, letting you record 8K and high-frame-rate 4K without dropped frames.

Does the UHS-II interface work at full speed in a UHS-I slot?

No, the card will fall back to UHS-I speeds; you need a UHS-II camera or reader to reach the 300MB/s read and 260MB/s write peaks.

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