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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

  • Interface typeUsb, usb c
  • Slots1
  • Installation typeNot Performance Used
  • Product type1-in-1
  • Product colorBlack
  • Compatible withCFexpress
  • 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.

How it compares

Measured against everything we stock in USB & Internal Card Readers, at today’s prices. Recalculated every night.

Price $43.99
Pricier than about 83% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameLexar
Model nameLRW550U-RNBNU
Product type1-in-1
Product colorBlack
Ports & slots
Interface typeUsb, usb c
Slots1
Size & build
Product dimensions2.77 L × 0.75 W × 0.51 H inches
Shipping weight0.06 kg
Package size70 × 19 × 13 mm
Compatibility
Compatible withCFexpress
Support - compact flashNo
Support - MMCNo
Support - SDNo
Support - xdNo
More details
Installation typeNot Performance Used

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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