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Rectangular gold-coloured CFexpress Type B memory card, 4TB capacity

Lexar

Lexar LCXEXPR004T-RNENG 4TB CFexpress 4.0 Type B memory card

SKU CH-FW8A-77G4C MPN LCXEXPR004T-RNENG

CFexpress 4.0 Type B card delivering up to 3600MB/s read and 3300MB/s write with 3000MB/s sustained write for uninterrupted high-resolution capture

  • Read speeds up to 3600 MB/s accelerate data transfer
  • Write speeds up to 3300 MB/s handle demanding capture workloads
  • Sustained 3000 MB/s write prevents dropped frames in cinema video
  • 4 TB capacity stores extensive high-resolution photo and video libraries
  • Operates from -12 °C to 72 °C for reliable use in harsh environments

Professional CFexpress 4.0 storage

The Lexar Professional GOLD CFexpress 4.0 Type B card delivers 4TB capacity for high-end cinema cameras and professional photo workflows. It targets creators capturing 8K video or high-speed burst sequences who need sustained throughput without dropped frames.

PCIe 4.0 interface and rugged build

The PCIe 4.0 Type B connector enables maximum read speeds of 3600MB/s and maximum write speeds of 3300MB/s, with a sustained write rate of 3000MB/s. The card operates from -12°C to 72°C and survives storage from -25°C to 85°C for reliable field use.

Verify camera slot and workflow gear

Confirm your camera accepts CFexpress Type B media and supports the PCIe 4.0 protocol for full performance. A compatible CFexpress 4.0 reader is required to transfer footage at rated speeds, and firmware updates may be needed on some bodies.

How it compares

Measured against everything we stock in Flash Memory Cards, at today’s prices. Recalculated every night.

Price $1,269.99
Pricier than about 91% of the 1,946 comparable items (median $46.99).

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Specifications

Product
Brand nameLexar
Part numberLCXEXPR004T-RNENG
Size & build
Shipping weight0.06 kg
Package size142 × 102 × 13 mm

Questions about this item

What does the CFexpress 4.0 interface cap at for this Lexar card?

The CFexpress 4.0 interface on this card delivers up to 3600MB/s read and 3300MB/s write, with sustained writes at 3000MB/s.

What camera slot does this Type B card physically need?

It fits any camera with a CFexpress Type B slot, such as the Canon EOS R5, Nikon Z9, or RED V-RAPTOR listed in the compatibility notes.

How is the card installed, and what step do people often miss?

Insert the card label-side up until it clicks; the step many miss is formatting it in the camera menu before the first shoot to avoid file-system errors.

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