Transcend 300S 512 GB Class 10/UHS-I (U3) microSDXC - 1 Pack

Transcend 300S 512 GB Class 10/UHS-I (U3) microSDXC - 1 Pack

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 95MB/s and 40MB/s respectively.

U3 and V30 compliance applies only to 128GB-512GB capacity cards.

Store as many as you wish

In addition to excellent random read/write performance, Transcend's microSDXC/SDHC 300S memory cards come in up to 512GB storage capacity, allowing you to keep more digital files and apps at hand!

Built for extremes

To deliver the best performance and stability, Transcend's microSD memory cards are tested to withstand extreme conditions. They are temperature resistant, waterproof, shock proof, X-ray proof, and static proof.

RecoveRx software

Transcend offers exclusive RecoveRx software, a free data recovery utility that allows you to search deep within a storage device for traces of erased files including digital photos, documents, music and videos.

• The microSDXC memory card features write speed of around 60 MB/s that is sufficient for recording high-definition videos to your mobile phone, tablet, or other smart devices


• The 512 GB card offers a higher storage capacity for a lot of music, a lot of videos, a lot of photos, a lot of games and a lot of everything you would like in today's world


• The Class 10/UHS-I (U3) card allows you to capture and store HD video with up to 1080p resolution