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Two silver SDXC memory cards with UHS-II labels

Lexar

Lexar LXRLSD1667256G-B2NNU 256GB UHS-II memory card

SKU CH-S0XV-MS8Q2 MPN LXRLSD1667256G-B2NNU

UHS-II SDXC card with 250 MB/s read speed and 256 GB capacity for 4K video capture

  • Type1 card
  • Read transfer speed up to 250MB/s accelerates workflow
  • UHS-II U3 rating captures 1080P Full-HD, 3D and 4K video
  • 256GB capacity enables extended shooting without card changes
  • Backwards compatible with UHS-I devices for broad camera support
  • 1667x speed rating delivers high-speed file transfer from card to computer

Professional UHS-II SDXC card for photographers

The Lexar Professional 1667x 256GB UHS-II SDXC card targets professional photographers and videographers who need fast, reliable storage for high-resolution stills and 4K video. Rated U3, it supports sustained capture on advanced DSLR, cinema and 3D cameras. The 256GB capacity lets you shoot longer without swapping cards.

UHS-II interface keeps thermals and power draw low

UHS-II technology delivers up to 250MB/s read transfer speed while maintaining low power consumption during extended recording sessions. The card runs cool in typical DSLR and camcorder workflows, so heat buildup does not interrupt long 4K or 1080p shoots. Backwards compatibility with UHS-I devices ensures broad usability without extra power demands.

250MB/s read speed decides if this card fits your

The 250MB/s maximum read transfer rate is the single figure that determines whether the card can ingest 4K, 3D and 1080p footage fast enough for your post-production pipeline. If your camera or reader cannot utilise UHS-II speeds, you will not see the full transfer benefit. Buyers who need higher sustained write throughput for higher-bitrate codecs should verify their device specifications first.

Highlights

  • Read transfer speed up to 250MB/s accelerates workflow
  • UHS-II U3 rating captures 1080P Full-HD, 3D and 4K video
  • 256GB capacity enables extended shooting without card changes
  • Backwards compatible with UHS-I devices for broad camera support
  • 1667x speed rating delivers high-speed file transfer from card to computer

Specifications

Type1 card
Shipping weight0.45 kg
Package size127 × 127 × 127 mm

Questions about this item

How do I install the Lexar Professional 1667x 256GB UHS-II card, and what step do people often miss?

Insert the card label-side up into your camera or reader until it clicks; the step many miss is confirming the device supports UHS-II to reach the 250MB/s read speed, otherwise it falls back to UHS-I rates.

What maintenance or replacement will the Lexar 256GB UHS-II card need over time?

No scheduled maintenance is required; replace the card if write errors appear, capacity drops below 256GB, or after heavy 4K video use wears the NAND beyond its endurance rating.

What limit appears first during sustained 4K recording on the Lexar 1667x 256GB card?

The 256GB capacity fills first — at 4K bit-rates you can exhaust the card in a single long session, while the U3 rating sustains the write speed needed for 4K without dropping frames.

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