
Lexar Professional 1667x 128GB
Score: 73/100
SanDisk Extreme PRO 128GB
Score: 85/100Rankings

The SanDisk 128 GB Extreme PRO SDXC UHS-II card offers ultra-fast 300 MB/s read/write performance, V90 video capability, and rugged IP68 durability, making it ideal for demanding 6K/8K video and high-speed burst photography. Compatibility is broad, though some users report issues with specific Canon models and older readers.

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 | 300 MB/sbest | |
120 MB/s | 300 MB/sbest | |
— | 30 yearsbest | |
| ↓ lower better | 2 g | 1.67 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Video Speed Class | V60 | V90 |
Maximum Read Speed (MB/s) | 250 MB/s | 300 MB/s |
Maximum Write Speed (MB/s) | 120 MB/s | 300 MB/s |
Compatibility(1) | ||
Compatible Devices | UHS-I and non-UHS devices | Devices supporting SDXC UHS‑II |
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”

“Multiple users report using SanDisk cards for years without failure.”

“Users appreciate fast offloads - e.g., 1000 photos (24 MP) transferred in under 4 minutes.”




Professional reviewers consistently rate the card as a top-tier choice for demanding video and burst-mode photography, praising its ability to handle 6K/8K footage, its rugged IP68 construction, and its high read/write speeds, while cautioning buyers to verify the exact model (V60 vs V90) and to use UHS-II-compatible hardware to unlock its full potential.
Everyday users love the card's reliability and speed, noting years of trouble-free use and rapid offloads, but many express frustration over occasional Canon R5 Mark II video glitches, speed drops on older readers, and confusion over V60 versus V90 labeling.