
Gigastone Micro SD Card 256GB
Score: 85/100Angelbird AV PRO SE 512GB
Score: 85/100Rankings

Gigastone's 256 GB microSDXC delivers fast up to 130 MB/s reads, rugged waterproof and shockproof construction, and broad device compatibility, all with a 5-year warranty. The UHS-I interface caps peak performance and speed claims can be inconsistent, so buyers should verify authenticity. Ideal for budget-conscious creators and gamers who need reliable 4K storage.
The Angelbird AV PRO SE CFexpress v4 512 GB card delivers industry-leading speeds and robust features for 12K+ RAW video capture. Its premium price and requirement for compatible hardware may deter non-professional users. Targeted at professional videographers and photographers needing top-tier performance.
| Attribute | ![]() | Angelbird AV PRO SE 512GB |
|---|---|---|
256 GB | 512 GBbest | |
130 MB/s | 3,700 MB/sbest | |
85 MB/s | 1,100 MB/sbest | |
| ↓ lower better | 20 g | 7 gbest |
5 yearsbest | 3 years | |
| ↓ lower better | — | 3.8 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | Angelbird AV PRO SE 512GB |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 256 GB | 512 GB |
Performance(3) | ||
Read Speed (MB/s) | 130 MB/s | 3700 MB/s |
Write Speed (MB/s) | 85 MB/s | 1100 MB/s |
Interface | UHS‑I | CFexpress v4 Type B, PCIe 4.0 x2 |
Design(2) | ||
Form Factor | microSDXC | CFexpress Type B |
Weight (g) | 20 g | 7 g |
General(1) | ||
Warranty (years) | 5 years | 3 years |

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

Professional reviewers commend the Gigastone 256 GB 4K Pro for its fast read speeds, solid V30/U3 rating, and rugged build, making it a capable choice for 4K video and gaming on a budget. However, they caution that the UHS-I interface limits peak performance, independent benchmarks are lacking, and there are documented counterfeit concerns, which together temper enthusiasm for demanding professional workflows.
Everyday users generally appreciate the card's ability to handle 4K video on devices like GoPro and Nintendo Switch, its quick transfer times, and the peace of mind offered by the free data recovery warranty. Recurring themes include satisfaction with durability and convenience of the included adapter, alongside worries about possible counterfeit units and occasional speed drops when the card fills up.
Professional reviewers such as Newsshooter, Redshark News and B&H commend the card for its reliable sustained performance, robust thermal management and the safety net of host power-loss protection, confirming its suitability for 12K+ RAW capture on cameras like the Red V-Raptor.
Limited user feedback; no common praise or complaints have emerged.
