Exascend UHS-II SD Card V90 Series256GB Catalyst Exascend

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The Catalyst SDXC UHS-II memory card with V90 speed class reads at up to 300 MB/s and writes at up to 280 MB/s; the V90 class guarantees a minimum write of 90 MB/s, so 8K video never drops a frame. pSLC memory, operation from −25 to 85 °C, protection against water, dust, impact, X-rays and magnets. 256 GB capacity, limited lifetime warranty with factory data recovery.

V90-class SDXC UHS-II: 300 MB/s read

Catalyst is Exascend’s fastest SD card in its class — 300 MB/s read, 280 MB/s write and a guaranteed 90 MB/s minimum for 8K video. 256 GB capacity, limited lifetime warranty with data recovery.

V90UHS-II300 / 280 MB/s256 GBLIFETIME WARRANTY

Into any body with an SD slot

The card is compatible with Canon EOS R and EOS, Sony Alpha, ZV and FX, Nikon Z and D, Fujifilm X and GFX, Panasonic LUMIX S and G, OM System, Pentax and Leica mirrorless and DSLR bodies, with Canon Cinema EOS, Sony PXW and Blackmagic Pocket Cinema Camera and URSA camcorders, and with Ricoh GR, Sony RX and Fujifilm X100 compacts. Practically every body has an SD slot — the card fits without an adapter.

Class V90: at least 90 MB/s for the whole take

The V90 speed class guarantees a sustained write of at least 90 MB/s — 8K video and burst shooting run without dropped frames. The 280 MB/s maximum write handles long RAW bursts; SuperCruise™ keeps the speed stable and Adaptive Thermal Control™ stops the card throttling as it warms up.

In the edit suite in minutes

300 MB/s read through an SD UHS-II reader moves a full card to the computer quickly and without waiting. Exascend backs it with a limited lifetime warranty and factory data recovery if footage is deleted by mistake or the card gets formatted.

Built for the field

Waterproof, dust-resistant, impact-resistant, X-ray-safe and magnet-resistant. Operates from −25 to 85 °C and stores from −40 to 85 °C — in frost or in the desert.

pSLC memory

Industrial memory with Data Retention Plus™, which refreshes stored data before natural degradation can put it at risk.

RAID ECC

Advanced error correction can rebuild even severely corrupted data.

Data recovery and lifetime warranty

A limited lifetime warranty and factory data recovery included.

64 GB – 256 GB

The Catalyst V90 series comes in several capacities; this is the 256 GB version.

The Exascend EX256GSDU2 256GB Catalyst UHS-II SD card delivers 300 MB/s read & 280 MB/s write (V90 guaranteed ≥90 MB/s). Rugged, weather-proof design withstands -13 to 185°F, water, dust, ideal for 8K/6K cinema and high-bitrate photography with zero dropped frames.

The Exascend EX256GSDU2 256GB Catalyst UHS-II SDXC Memory Card is a cinema-grade, ultra-reliable storage solution engineered for professional filmmakers and photographers pushing extreme bitrates. Leveraging the UHS-II bus, it achieves blazing-fast 300 MB/s read and 280 MB/s write speeds, while the V90 rating guarantees sustained minimum writes of 90 MB/s—ensuring zero dropped frames during 8K RAW, 6K ProRes, or high-frame-rate recording. Perfect for Canon, Panasonic, RED, and Z CAM workflows, the Catalyst series combines massive 256GB capacity with frictionless performance and durability.

Key Features:

• 256GB UHS-II SDXC with V90 / U3 / Class 10 certification
• Max 300 MB/s read & 280 MB/s write; ≥90 MB/s sustained
• Cinema-grade reliability—no dropped frames, no overheating
• Fully rugged: waterproof, dustproof, shockproof, X-ray-proof, magnet-proof
• Extreme temperature rated: -13 to 185°F (-25 to 85°C)
• Physical write-protect switch for data safety
• Backward compatible with UHS-I devices (V60/V30/U3/U1 fallback)
• Ideal for 8K/6K/4K RAW, ProRes 4444XQ, high-FPS, and burst photography

• 1× Exascend Catalyst SDXC UHS-II V90 256 GB memory card

• Card type: SDXC
• Interface: UHS-II
• Speed class: V90, U3, Class 10
• Capacity: 256 GB
• Memory type: pSLC
• Max. sequential read: 300 MB/s
• Max. sequential write: 280 MB/s
• Guaranteed minimum write: 90 MB/s (V90)
• Operating temperature: −25 to 85 °C
• Storage temperature: −40 to 85 °C
• Protection: water, dust, impact, X-ray, magnetic fields
• Compatibility: any device with an SD/SDXC slot — Canon EOS R and Cinema EOS, Sony Alpha, ZV, FX and PXW, Nikon Z and D, Fujifilm X and GFX, Panasonic LUMIX, OM System, Pentax, Leica, Blackmagic Pocket Cinema Camera and URSA
• Warranty: limited lifetime, data recovery included
• Part number: EX256GSDU2