
Delkin Power 128GB
Score: 83/100
Angelbird AV PRO 128GB
Score: 88/100Rankings

The Angelbird AV PRO SD V90 128 GB is a professional-grade UHS-II SDXC card delivering up to 300 MB/s read and 260 MB/s sustained write speeds. Its rugged build and ECC features add durability but it needs UHS-II hardware and lacks bundled accessories. Best suited for videographers and photographers needing reliable high-speed storage in demanding field conditions.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
300 MB/sbest | 300 MB/sbest | |
250 MB/s | 280 MB/sbest | |
| ↓ lower better | 45 g | 1.98 gbest |
— | 3 yearsbest | |
| ↓ lower better | 2.5 mmbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(1) | ||
Write Speed (MB/s) | 250 MB/s | 280 MB/s |
Design(1) | ||
Weight (g) | 45 g | 1.98 g |
General(1) | ||
Warranty (years) | lifetime years | 3 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.

Professional reviewers from Wex Photo Video, B&H Photo Video, and Adorama consistently commend the Angelbird AV PRO SD V90 MK2 for its reliable 260 MB/s sustained write speed, robust durability, and Stable Stream technology that prevents speed drops during long recordings.
Direct consumer reviews are scarce in the available data, but inferred feedback suggests users appreciate the card's fast transfer rates and rugged build for field work.
