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Two rectangular gold memory cards in plastic case

Lexar

Lexar Gold Series Professional 512GB CFexpress 4.0 Type-B 2-Pack memory cards

SKU CH-G6MX-GXZPX

Two 512 GB CFexpress 4.0 Type-B cards deliver 3600 MB/s read, 3300 MB/s write and sustained 3000 MB/s for 8K RAW, rated from 10.4 °F to 161.6 °F

  • Blazing 3600 MB/s read speed accelerates file transfers
  • Sustained 3000 MB/s write enables smooth 8K RAW recording
  • 3300 MB/s max write cuts buffer clearing time
  • 512 GB capacity stores more high-res content per card
  • Operates from 10.4 °F to 161.6 °F for extreme-condition reliability

Professional dual-pack for high-resolution capture

Two 512GB CFexpress 4.0 Type-B cards deliver up to 3600MB/s read and 3300MB/s write, giving photographers and videographers the throughput needed for continuous 8K RAW recording without dropped frames.

PCIe 4.0 interface sets the practical ceiling

Sustained write performance reaches 3000MB/s, so the host device must maintain that bandwidth throughout a take; any bottleneck in the camera or reader will limit real-world speed to the slowest link in the chain.

Verify your camera and reader support CFexpress

Older bodies or readers limited to earlier revisions cannot utilise the stated speeds, and firmware updates may be required to enable full performance on compatible models.

Highlights

  • Blazing 3600 MB/s read speed accelerates file transfers
  • Sustained 3000 MB/s write enables smooth 8K RAW recording
  • 3300 MB/s max write cuts buffer clearing time
  • 512 GB capacity stores more high-res content per card
  • Operates from 10.4 °F to 161.6 °F for extreme-condition reliability

Specifications

No published specifications for this item yet.

Questions about this item

Should I get the 512GB 2-pack or a single larger card?

The 512GB 2-pack gives you 1TB total with redundancy; if one card fails mid-shoot you still have the other, and you can offload footage to one while continuing to record on the second.

Will I actually see 3600MB/s read and 3300MB/s write in my camera?

Peak speeds of 3600MB/s read and 3300MB/s write need a CFexpress 4.0 host; most current cameras cap lower, so real-world throughput will match the camera’s controller limit, not the card’s ceiling.

What does the CFexpress 4.0 Type-B label mean for compatibility and speed ceiling?

CFexpress 4.0 Type-B uses PCIe 4.0 x2 lanes, so the theoretical bus maximum is about 4GB/s; the card’s 3600MB/s read and 3300MB/s write sit under that ceiling, and it works in any Type-B slot that supports the 4.0 spec.

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