A good fit for mobile app storage Itâs common for users to install & run mobile apps from micro SD cards in order to free device memory. Random read/write performance is thus crucial. Transcend's micro SDXC/SDHC 300S memory cards are a great fit for storing mobile apps. Introducing Application Performance Class The Application Performance Class was introduced to adapt this new trend. Transcend's micro SDXC/SDHC 300S memory cards meet the new A1 standards, delivering minimum random read of 1, 500 IOPS & random write of 500 IOPS, & sustained sequential speeds of at least 10MB/s. Show the transfer capabilities Transcend's micro SDXC/SDHC 300S memory cards meet both the UHS Speed Class 3 (U3) & the UHS Video Speed Class 30 (V30) standards for 4K Ultra HD video recordings, with read/write speeds of up to 95MB/s & 45MB/s respectively. Store as many as you wish In addition to excellent random read/write performance, Transcend's micro SDXC/SDHC 300S memory cards come in up to 256GB storage capacity, allowing you to keep more digital files & apps at hand! Built for extremes To deliver the best performance & stability, Transcend's micro SD memory cards are tested to withstand extreme conditions.
- Waterproof: meet JIS IPX7 standards that can withstand immersion in 1 meter of water for up to 30 minutes.
- Temperature proof: perform in temperature extremes from -25°C to 85°C.
- Static proof: meet EMC IEC61000-4-2 standards & withstand static electricity.
- X-ray proof: meet the ISO7816-1 standard & are immune to airport X-rays.
- Shock proof: provide excellent shock, vibration, bending & twisting resistance.
Specification Speed Class: UHS-I U3, UHS-I U1, Class 10, V30, A1 Sequential Read/ Write (Crystal Disk Mark): 256GB 95/45 MB/s, 128GB 95/45 MB/s, 64GB 95/40 MB/s, 32GB 95/20 MB/s, 16GB 95/10 MB/s, 8GB 20/10 MB/s, 4GB 20/10 MB/s Insertion/ Removal Cycles: 10, 000 Operating Temperature: -25°C (-13°F) ~ 85°C (185°F) Operating Voltage: 2.7V ~ 3.6V Note: Speed may vary due to host hardware, software, usage, & storage capacity.