
microSD
STINGRAY microSDXC UHS-I
256 GB
Compact storage built for devices in motion.
- UHS-I
- Class 10
- U3
- V30
- A2
Product passport
- Format
- microSDXC
- Capacity
- 256 GB
- Interface
- UHS-I
- Speed class
- Class 10 · U3
- Video class
- V30
- App class
- A2
Overview
microSDXC storage for smartphones, action cameras, drones and embedded systems.
STINGRAY microSDXC is built for compact devices that capture and move data continuously. The card carries UHS-I, Class 10, U3, V30 and A2 markings — the standards that define how it behaves during sustained recording and application use.
Built for
- Mobile
- Action cameras
- Drones
- Embedded systems
Engineering
Every mark has a meaning.
Each symbol printed on this card is a published standard. Together they describe exactly how it behaves when a device writes at full rate.

- 256 GB
Capacity
Total addressable storage on the card.
Hours of 4K footage or tens of thousands of stills before a swap.
- UHS-I
Bus interface
The Ultra High Speed bus the card runs on.
Determines the ceiling for transfer rates on a compatible host.
- C10
Speed Class
Minimum sustained write of 10 MB/s.
The baseline for Full HD recording without dropped frames.
- U3
UHS Speed Class
Minimum sustained write of 30 MB/s on a UHS bus.
Headroom for 4K capture and high-bitrate photography bursts.
- V30
Video Speed Class
Minimum sustained write of 30 MB/s, defined for video.
A recording guarantee, not a peak figure — takes survive.
- A2
App Performance Class
Random read and write performance for running applications.
Apps and systems installed on the card stay responsive.
Compatibility
Where this card belongs.
- Smartphones and tablets with microSD expansion
- Action cameras and aerial platforms
- Dashboard and security cameras
- Single-board computers and embedded controllers
- SD-slot devices via a microSD adapter
Specifications
Technical data
| Family | microSD |
|---|---|
| Form factor | microSDXC |
| Capacities | 256 GB |
| Interface | UHS-I |
| Speed class | Class 10 · U3 |
| Video class | V30 |
| App class | A2 |
Documentation
Datasheets and compatibility documentation for this product are available on request from STINGRAY Support.
Warranty
Warranty terms vary by product and market. Please refer to the documentation for your specific model or contact STINGRAY Support.