SanDisk
SanDisk Extreme PRO SDXC UHS-I 128GB
$72.35Cheaper
Released 2021
Best Memory Cards · head-to-head
SanDisk Extreme PRO SDXC UHS-I 128GB vs Lexar Professional 1667x SDXC UHS-II 128GB
A sourced, side-by-side comparison. SanDisk Extreme PRO SDXC UHS-I 128GB is cheaper at $72.35. Every spec and price links to its source.
Lexar
Lexar Professional 1667x SDXC UHS-II 128GB
$94.99
Released 2019
Which is better: the SanDisk Extreme PRO SDXC UHS-I 128GB or Lexar Professional 1667x SDXC UHS-II 128GB?
The Lexar Professional 1667x SDXC UHS-II 128GB wins 2 of the 2 specs we compare head to head; the other wins 0. The SanDisk Extreme PRO SDXC UHS-I 128GB is the cheaper at $72.35. Get the Lexar Professional 1667x SDXC UHS-II 128GB for the stronger spec sheet, the SanDisk Extreme PRO SDXC UHS-I 128GB to spend less.
See SanDisk Extreme PRO SDXC UHS-I 128GB on Amazon Check Lexar Professional 1667x SDXC UHS-II 128GB price
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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.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | SanDisk Extreme PRO SDXC UHS-I 128GB | Lexar Professional 1667x SDXC UHS-II 128GB |
|---|---|---|
| US price | $72.35 | $94.99 |
| Brand | SanDisk | Lexar |
| Released | 2021 | 2019 |
| Format | sd | sd |
| Capacity (GB) | 128 | 128 |
| Speed class | u3_v30 | v60 |
| Max read (Mbps) | 200 | 250 |
| Max write (Mbps) | 90 | 120 |
| Application class | a2 | — |
| Warranty | limited lifetime | limited lifetime |
| Release | 2021 | 2019 |
Sources — SanDisk Extreme PRO SDXC UHS-I 128GB: target.com (verified 2026-06-19). Lexar Professional 1667x SDXC UHS-II 128GB: americas.lexar.com (verified 2026-06-19).
What's the difference between the SanDisk Extreme PRO SDXC UHS-I 128GB and Lexar Professional 1667x SDXC UHS-II 128GB?
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
- Speed class: SanDisk Extreme PRO SDXC UHS-I 128GB u3_v30 vs Lexar Professional 1667x SDXC UHS-II 128GB v60
- Max read (Mbps): SanDisk Extreme PRO SDXC UHS-I 128GB 200 vs Lexar Professional 1667x SDXC UHS-II 128GB 250
- Max write (Mbps): SanDisk Extreme PRO SDXC UHS-I 128GB 90 vs Lexar Professional 1667x SDXC UHS-II 128GB 120
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
SanDisk Extreme PRO SDXC UHS-I 128GB
No sourced tester review yet.
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.