Datasheet

A good fit for mobile app storage
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.
Introducing Application
Performance Class
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.
Show the transfer capabilities
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
100MB/s and 85MB/s respectively.
U3 and V30 compliance applies only to 128GB-512GB
capacity cards.
microSD Cards
microSDXC/SDHC 300S
Want to save space on your mobile device by running apps from a memory card? Transcend's microSDXC/SDHC
300S cards are the right choice! Compliant with the latest speed class, the cards boast excellent random read/write
speed, perfect for retrieving small pieces of data from random locations and speeding app launch time.