
Lexar Professional 1667x 128GB
Score: 73/100
SanDisk Extreme PRO UHS-II 128GB
Score: 89/100Rankings

The SanDisk 128 GB Extreme PRO UHS-II SDXC card delivers industry-leading read speeds (up to 280 MB/s) and a solid 60 MB/s sustained write rate (V60), packaged in a rugged, waterproof design and bundled with RescuePRO data-recovery software. It targets prosumers and professionals needing fast off-load and reliable 6K/4K video capture, though its write speed may limit the most demanding codecs.

The Lexar 128 GB Professional 1667x UHS-II SDXC card (2-pack) provides high read speeds and a V60 video rating, making it suitable for 4K video and fast RAW bursts. Its dual-card configuration, write-protect switch, and lifetime warranty add value, though write speeds lag behind top-tier competitors.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
250 MB/s | 280 MB/sbest | |
120 MB/sbest | 100 MB/s | |
| ↓ lower better | 2 g | 1.67 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Maximum Read Speed (MB/s) | 250 MB/s | 280 MB/s |
Maximum Write Speed (MB/s) | 120 MB/s | 100 MB/s |
Speed Class | Class 10 | C10 |
Compatibility(1) | ||
Compatible Devices | UHS-I and non-UHS devices | UHS‑I, SDHC/SDXC devices (reduced speeds) |
Physical(1) | ||
Weight (g) | 2.0 g | 1.67 g |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the Lexar 1667x series for its solid UHS-II performance, V60 rating, and extensive testing across more than 1,100 devices, highlighting its reliability in demanding DSLR and cinema camera workflows. They also note the added confidence of a limited lifetime warranty, though they acknowledge that write speeds, while good, lag behind some premium competitors.
Everyday users consistently rate the cards highly (4.5-4.9/5), lauding the fast transfer speeds, dependable 4K video capture, and the convenience of the write-protect switch and recovery software. Common complaints focus on occasional slower real-world write speeds, incompatibility with older readers, and the absence of a bundled card reader or case.

“dramatically accelerates workflow from start to finish”




Professional reviewers from B&H and Hunt's Photo commend the Extreme PRO UHS-II for its reliable V60 performance, fast 280 MB/s read speed and rugged construction, making it a solid choice for most 6K and 4K workflows.
Everyday users overwhelmingly praise the card's speed, durability and the included RescuePRO software, often rating it five stars.