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Black Lexar CFexpress Type B card reader, compact rectangular shape with USB-C port

Lexar

Lexar LRW550U-RNBNU CFexpress Type B card reader

SKU CH-AK0M-D1QH6 MPN LRW550U-RNBNU

Reads CFexpress Type B cards at up to 1700 MB/s via USB 3.2 Gen 2x2 with included dual cables in a pocket-sized 2.77 x .75 x .51-inch black housing

  • Type1-in-1
  • Slots1
  • Installation TypeNot_Performance_Used
  • ColorBlack
  • Interfaceusb, usb_c
  • CompatibilityCFexpress
  • Designed for CFexpress Type B cards
  • Read speeds up to 1700 MB/s via USB 3.2 Gen 2x2
  • Includes USB-C to USB-A and USB-C to USB-C cables
  • Compact 2.77 x .75 x .51 inch form factor
  • Plug-and-play operation for fast field offload

CFexpress Type B single-slot reader

The Lexar LRW550U-RNBNU is a 1-in-1 card reader built exclusively for CFexpress Type B media. It connects through USB-C and USB-A ports using the supplied dual-head cable, so it works with modern laptops and desktops without extra adapters. The matte-black housing measures 2.77 x 0.75 x 0.51 inches and slips into a pocket or gear bag. Photographers and videographers who shoot on CFexpress Type B cards get a dedicated, driver-free offload tool.

Up to 1700 MB/s transfer over USB 3.2 Gen 2x2

The reader tops out at 1700 megabytes per second when paired with a compatible host port and card, letting you move RAW 8K video and high-resolution stills in a fraction of the time older USB readers need. That single number decides whether the device keeps pace with your shooting volume. If your computer only offers slower USB generations, the reader will still work but will not reach the quoted ceiling.

For CFexpress Type B shooters needing maximum

Creators who rely on CFexpress Type B cards and have a USB 3.2 Gen 2x2 port will see the full workflow benefit. Users with only SD, CompactFlash, MMC or xD media cannot use this reader at all, as it lacks slots for those formats. Buyers whose systems top out at USB 3.2 Gen 2 or earlier will not hit the 1700 MB/s rate and may prefer a less specialised reader.

Highlights

  • Designed for CFexpress Type B cards
  • Read speeds up to 1700 MB/s via USB 3.2 Gen 2x2
  • Includes USB-C to USB-A and USB-C to USB-C cables
  • Compact 2.77 x .75 x .51 inch form factor
  • Plug-and-play operation for fast field offload

Specifications

BrandLexar
ModelLRW550U-RNBNU
Type1-in-1
Slots1
Installation TypeNot_Performance_Used
ColorBlack
Interfaceusb, usb_c
CompatibilityCFexpress
Support - Compact FlashNo
Support - MMCNo
Support - SDNo
Support - xDNo
Dimensions2.77 L x 0.75 W x 0.51 H inches
FeaturesSupports various media types such as with Not_Performance_Used functionality. Compatible with and offers a data transfer rate of up to 1700 megabytes_per_second using usb, usb_c interfaces.
Shipping weight0.06 kg
Package size70 × 19 × 13 mm

Questions about this item

What does the 1700MB/s read speed mean when I plug the reader into my computer?

It is the maximum sequential read rate the reader can deliver over USB 3.2 Gen 2x2 when paired with a CFexpress Type B card that sustains that speed; actual throughput will match the slower of the card or the host port.

Which USB standard does the LRW550U-RNBNU use and what throughput does it cap at?

The reader uses USB 3.2 Gen 2x2 over USB-C, providing up to 1700MB/s transfer bandwidth for CFexpress Type B cards.

What physical space do I need for this reader and its cables?

The reader measures 2.77 by 0.75 by 0.51 inches and ships with a USB-C to USB-C cable and a USB-C to USB-A cable for direct connection to either port type.

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