
Delkin Power 128GB
Score: 83/100
Lexar Professional 2000x 128GB
Score: 82/100Rankings

Delkin Devices Power 128 GB is a UHS-II SDXC card delivering V90 speeds up to 300 MB/s read and 250 MB/s write, built for rugged field use. Real-world write performance is slightly lower and speed advantage disappears on UHS-I only gear. Ideal for professionals needing durable, high-speed storage with a lifetime warranty.

Lexar Professional 2000x 128 GB SDXC UHS-II card offers up to 300 MB/s read and 260 MB/s write speeds, V90 certification, and includes a dedicated UHS-II reader for fast off-loading. Full performance is limited to UHS-II devices and the price is premium. Perfect for professionals shooting 8K/4K video who need rapid transfer capabilities.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
300 MB/sbest | 300 MB/sbest | |
250 MB/s | 260 MB/sbest | |
| ↓ lower better | 45 g | 2 gbest |
| ↓ lower better | 2.5 mm | 2.1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Write Speed (MB/s) | 250 MB/s | 260 MB/s |
Speed Class | Class 10 | C10 |
UHS Speed Class | U3 | UHS-II |
Design(2) | ||
Weight (g) | 45 g | 2 g |
Thickness (mm) | 2.5 mm | 2.1 mm |
General(1) | ||
Warranty (years) | lifetime years | Lifetime years |

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

Professional reviewers consistently commend the Power 128 GB card for delivering near-spec V90 speeds, robust shock resistance, and an industry-leading lifetime warranty with fast replacement. However, they also note that real-world write performance falls short of the advertised peak and that the card's advantage diminishes in UHS-I-only equipment.
No direct consumer reviews were found; most online listings only repeat retailer specifications, so everyday user sentiment is largely unavailable.

“"high-speed storage for demanding workflows"”

“"unlocks your device's full potential"”




Professional editors from StorageReview, Sweetwater, Glazer's and B&H praise the Lexar 2000x for its high-speed 300 MB/s read and 260 MB/s write performance, V90 certification, and the added value of a sturdy aluminum UHS-II reader that streamlines post-production workflows. They note the card excels in 4K video, drone and action-camera use, but caution that full speeds are only realized with UHS-II hosts and that the price is premium relative to similar-speed competitors.
Retail-site feedback highlights strong appreciation for the card's speed in 4K video and burst photography, as well as the convenience of the bundled reader. Recurring themes include praise for the large capacity and ruggedness, while users commonly mention the need for UHS-II-compatible gear to unlock the advertised performance.