
Delkin Power 128GB
Score: 83/100
Sony TOUGH-M 128GB
Score: 83/100Rankings

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.

The Sony TOUGH-M 128 GB SDXC UHS-II card offers rugged durability with IP68 protection and fast up to 277 MB/s read speeds, making it ideal for demanding 4K video and burst photography. Its performance is limited on UHS-I devices and it lacks a physical write-protect switch. Best suited for professionals working in harsh environments.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
300 MB/sbest | 277 MB/s | |
250 MB/sbest | 150 MB/s | |
| ↓ lower better | 45 g | 2 gbest |
— | 5 yearsbest | |
| ↓ lower better | 2.5 mm | 2 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Read Speed (MB/s) | 300 MB/s | 277 MB/s |
Write Speed (MB/s) | 250 MB/s | 150 MB/s |
Video Speed Class | V90 | V60 |
Design(2) | ||
Weight (g) | 45 g | 2 g |
Thickness (mm) | 2.5 mm | 2 mm |
General(1) | ||
Warranty (years) | lifetime years | 5 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 and editors highlight the card's rugged construction and V60 video performance, noting its suitability for demanding 4K video and burst photography in extreme conditions, while also pointing out that the speed advantage is only fully realized on UHS-II hosts.

