|Read Speed (Max.)||100 MB/s|
|Write Speed (Max.)||40 MB/s|
|Product Type||MicroSD Cards|
|Flash Type||3D NAND flash|
|Operating Temperature||-25°C (-13°F) ~ 85°C (185°F)|
|Operating Voltage||2.7V ~ 3.6V|
|Others||Note Speed may vary due to host hardware, software, usage, and storage capacity|
|Memory Speed||UHS-I U3, UHS-I U1, V30, A1|
|Dimensions (W x D x H)||11 mm x 15 mm x 1 mm|
Transcend 128GB USD300S-A UHS-I U3A1 MicroSD Card With Adapter
It's common for users to install and run mobile apps from microSD cards in order to free device memory. Random read/write performance is thus crucial. Transcend's microSDXC/SDHC 300S memory cards are a great fit for storing mobile apps.
The Application Performance Class was introduced to adapt this new trend. Transcend's microSDXC/SDHC 300S memory cards meet the new A1 standards, delivering minimum random read of 1,500 IOPS and random write of 500 IOPS, and sustained sequential speeds of at least 10MB/s.A1 compliance applies only to 32GB-512GB capacity cards.
Transcend's microSDXC/SDHC 300S memory cards meet both the UHS Speed Class 3 (U3) and the UHS Video Speed Class 30 (V30) standards for 4K Ultra HD video recordings, with read/write speeds of up to 95MB/s and 40MB/s respectively.U3 and V30 compliance applies only to 128GB-512GB capacity cards.