Transcend 512GB 300S UHS-I microSDXC Memory Card with SD Adapter

While this card has been designed for cameras that are UHS-I / V30 / U3 compatible, it may be used in devices that do not support UHS-I / V30 / U3. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U1, which support minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s.

Aside from support for UHS-I, V30, and U3, Transcend also built this card with support for the Application Performance Class 1 (A1) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions.

As with most Transcend cards, this memory card is shockproof, X-ray proof, and waterproof, while also being able to withstand static, plus temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments. Should the card's data become compromised, you also benefit from Transcend's free RecoveRx software for to help recover deleted content, including photos, documents, music, and videos. So that this card may be used in SD-compatible devices, a microSD to SD adapter is included.

It's common for users to install and run mobile apps from microSD cards in order to free up space on their device, making random read/write performance crucial. Transcend's 300S is a good fit for storing mobile apps.

The Application Performance Class 1 (A1) standard was introduced to adapt this trend of storing apps from microSD cards. This 300S memory card meets the A1 standard, delivering minimum random reads of 1500 IOPS, random writes of 500 IOPS, and sustained sequential speeds of at least 10 MB/s.

Transcend's 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 100 MB/s and 65 MB/s respectively, plus minimum write speeds of 30 MB/s.

In addition to strong random read/write performance, Transcend's 300S memory cards feature a storage capacity of 512GB, allowing you to keep more digital files and apps at hand.

To deliver improved performance and stability, Transcend's 300S microSD memory cards are tested to withstand extreme conditions.