Best Memory Cards · head-to-head

Lexar Professional 1667x SDXC UHS-II 128GB vs Delkin BLACK UHS-II SDXC V90 128GB

A sourced, side-by-side comparison. Lexar Professional 1667x SDXC UHS-II 128GB is cheaper at $94.99. Every spec and price links to its source.

Which is better: the Lexar Professional 1667x SDXC UHS-II 128GB or Delkin BLACK UHS-II SDXC V90 128GB?

The Delkin BLACK UHS-II SDXC V90 128GB wins 2 of the 2 specs we compare head to head; the other wins 0. The Lexar Professional 1667x SDXC UHS-II 128GB is the cheaper at $94.99. Get the Delkin BLACK UHS-II SDXC V90 128GB for the stronger spec sheet, the Lexar Professional 1667x SDXC UHS-II 128GB to spend less.

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Key specs, head to head

The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.

Max read (Mbps)
Lexar Professional 1667x SDXC UHS-II 128GB 250
Delkin BLACK UHS-II SDXC V90 128GB 300
Max write (Mbps)
Lexar Professional 1667x SDXC UHS-II 128GB 120
Delkin BLACK UHS-II SDXC V90 128GB 250

Full spec sheet

✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Lexar Professional 1667x SDXC UHS-II 128GB Delkin BLACK UHS-II SDXC V90 128GB
US price $94.99 $185.99
BrandLexarDelkin Devices
Released20192021
Format sd sd
Capacity (GB) 128 128
Speed class v60 v90
Max read (Mbps) 250 300
Max write (Mbps) 120 250
Application class — —
Warranty limited lifetime limited lifetime
Release 2019 2021

Sources — Lexar Professional 1667x SDXC UHS-II 128GB: americas.lexar.com (verified 2026-09-28). Delkin BLACK UHS-II SDXC V90 128GB: bhphotovideo.com (verified 2026-06-19).

What's the difference between the Lexar Professional 1667x SDXC UHS-II 128GB and Delkin BLACK UHS-II SDXC V90 128GB?

Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.

  • Speed class: Lexar Professional 1667x SDXC UHS-II 128GB v60 vs Delkin BLACK UHS-II SDXC V90 128GB v90
  • Max read (Mbps): Lexar Professional 1667x SDXC UHS-II 128GB 250 vs Delkin BLACK UHS-II SDXC V90 128GB 300
  • Max write (Mbps): Lexar Professional 1667x SDXC UHS-II 128GB 120 vs Delkin BLACK UHS-II SDXC V90 128GB 250

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Lexar Professional 1667x SDXC UHS-II 128GB

TechRadar (May 2025) is the only whitelisted source with genuine hands-on testing of this exact Lexar Professional 1667x SDXC UHS-II. It measured 254MB/s read and 101MB/s write, praising read consistency, capacities up to 256GB, and the limited lifetime warranty, while flagging the 64GB minimum capacity and 4K as the practical filmmaking ceiling. (1 sourced review, 1 lab-tested.)

Praised: Read speed matched the claimed spec almost exactly at 254MB/s; consistent and fast; Limited lifetime warranty; Available in capacities up to 256GB.

Flagged: 64GB minimum capacity, no smaller backup option; Write speed dropped about 20% to 101MB/s versus the 120MB/s claim; 4K video is the practical ceiling for filmmaking.

Delkin BLACK UHS-II SDXC V90 128GB

No sourced tester review yet.

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