ProGrade Digital V60 512GB
Score: 83/100
ProGrade Digital V90 Iridium 256GB
Score: 75/100Rankings
The ProGrade Digital 512 GB UHS-II SDXC card offers blazing 250 MB/s read speeds and a guaranteed V60 (60 MB/s) sustained write speed, making it ideal for 4K/UHD video and rapid RAW photo bursts. However, its maximum write speed tops out at 130 MB/s and performance falls back to U3/V30 levels in legacy UHS-I slots. It is best suited for professional photographers and videographers who need rugged durability and fast off-loading in UHS-II-compatible devices.
The ProGrade Digital 256 GB SDXC UHS-II V90 card delivers top-tier read/write speeds and robust V90 certification for professional video capture. Its main drawbacks are the premium cost and reduced performance on UHS-I-only devices. Ideal for videographers needing reliable 6K/4K RAW recording in demanding environments.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
250 MB/s | 300 MB/sbest | |
130 MB/s | 275 MB/sbest | |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 2.1 mmbest | 2.1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 512 GB | 256 GB |
Performance(5) | ||
Read Speed (MB/s) | 250 MB/s | 300 MB/s |
Write Speed (MB/s) | 130 MB/s | 275 MB/s |
Speed Class | C10 | Class 10 |
UHS Speed Class | U3 | UHS-II |
Video Speed Class | V60 | V90 |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the card's near-spec read performance and reliable V60 sustained writes, emphasizing its cost-effective speed for 4K and RAW capture. However, they caution that the write speed ceiling and the steep performance loss in legacy UHS-I slots limit its suitability for the most demanding 8K workflows.
Consumer commentary is sparse; the few available mentions echo the professional view, highlighting fast reads and durability but offering no additional praise or complaints.
“The card performs very well for read speeds, with peaks hitting the claimed numbers but occasional drops.”
Professional reviewers are not directly quoted in the available sources; the information consists mainly of manufacturer datasheets and retailer specifications that emphasize the card's high sustained speeds, durability and suitability for flagship cameras.
No consumer reviews or testimonials were found in the research, so everyday user sentiment cannot be summarized.
