We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular CFexpress Type-B memory card with Delkin Devices POWER 4.0 512GB label

Delkin Devices

Delkin Devices POWER 4.0 CFexpress Type-B 512GB memory card

SKU CH-FD64-V6AAA

CFexpress 4.0 card with 512 GB capacity, 3650 MB/s read, 3240 MB/s write and 820 MB/s sustained write for 8K capture

  • Blazing 3650 MB/s read speed accelerates offloads
  • 3240 MB/s write speed captures flawless 8K RAW
  • 820 MB/s sustained write prevents dropped frames
  • CFexpress 4.0 spec meets cinema workflow demands
  • 512 GB capacity stores extensive high-res footage

Professional 8K workflow card

The Delkin Devices POWER 4.0 CFexpress Type-B card provides 512GB of storage built on the CFexpress 4.0 specification. It targets cinematographers and high-resolution photographers who need sustained throughput for cinema-quality RAW video at 8K, 6K and 4K resolutions. The card is tested for compatibility with professional cameras from Canon, Nikon and Panasonic.

Speed ratings that shape daily use

A maximum read speed of 3650MB/s shortens offload times so post-production can start sooner. Maximum write speed reaches 3240MB/s, allowing high-bitrate recording without buffer stalls. The sustained write speed of 820MB/s is the figure that prevents dropped frames during long takes, making it the critical number for continuous capture reliability.

CFexpress 4.0 host requirement

These speeds only materialise when the camera or reader implements the CFexpress 4.0 interface; older CFexpress 2.0 or 1.0 hosts will fall back to their lower throughput ceilings. The Type-B form factor also means the card will not fit Type-A or Type-C slots. Buyers who need more capacity than 512GB or who work with devices limited to earlier CFexpress versions should verify host support before purchasing.

Highlights

  • Blazing 3650 MB/s read speed accelerates offloads
  • 3240 MB/s write speed captures flawless 8K RAW
  • 820 MB/s sustained write prevents dropped frames
  • CFexpress 4.0 spec meets cinema workflow demands
  • 512 GB capacity stores extensive high-res footage

Specifications

No published specifications for this item yet.

Questions about this item

Will the 820 MB/s sustained write speed drop further after heavy 8K recording sessions?

The card is rated for 820 MB/s sustained write speed, which is the guaranteed minimum during prolonged shooting; it does not degrade below that figure under normal operating conditions.

Does the 3240 MB/s peak write speed hold during long 8K RAW clips, or does thermal throttling cut it first?

The 820 MB/s sustained write speed is the limit that remains consistent during extended recording; the 3240 MB/s figure is a peak burst rate and not maintained continuously.

How hot does the CFexpress 4.0 card get and does it draw more power when transferring at 3650 MB/s all day?

The card is built to withstand tough conditions and maintains its rated speeds without reported thermal throttling or excessive power draw during sustained high-speed transfers.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.