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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.
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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. Note: A1 compliance applies only to 128GB-256GB capacity cards
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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 45MB/s respectively. Note: U3 and V30 compliance applies only to 128GB-256GB capacity cards.
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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 256GB storage capacity, allowing you to keep more digital files and apps at hand!
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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.
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RecoveRx software
Transcend offers RecoveRx software, a 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.
![UHS Bus Interface](https://shophive.com/pub/media/descriptions/71aa3710-db7e-4493-9136-6e7e12b05cf1._CR0,0,300,300_PT0_SX300__.jpg)
UHS Bus Interface
UHS-I provides faster bus speed using just one row of pins, while UHS-II uses two lanes for even faster data transfer via two rows of pins. The symbol "I" means UHS-I, and "II" means UHS-II. Please make sure your device supports the same standard to benefit from the increased speeds.
![UHS Speed Class](https://shophive.com/pub/media/descriptions/cf9369e2-5800-4eea-a53f-7c6600ad00a3._CR0,0,300,300_PT0_SX300__.jpg)
UHS Speed Class
UHS Speed Class includes UHS Speed Class 1 (U1) and UHS Speed Class 3 (U3). UHS Speed Class 1 supports a minimum 10MB/s write speed, whereas UHS Speed Class 3 supports at least 30MB/s write speed.
![Video Speed Class](https://shophive.com/pub/media/descriptions/88e9d9eb-ee87-472b-811f-9e9271ccd077._CR0,0,300,300_PT0_SX300__.jpg)
Video Speed Class
Video Speed Class is defined to answer a demand for high resolution and high quality 4K8K video recording. V60 (60 MB/s) and V90 (90 MB/s) can support 8K resolution, while V6, V10 and V30 capture high-definition and 4K resolution and guarantee minimum sequential write speeds of 6 MB/s, 10 MB/s and 30 MB/s respectively.
![Application Performance Class](https://shophive.com/pub/media/descriptions/96b4d37d-7707-4175-b504-d4c4ae0ebc83._CR0,0,300,300_PT0_SX300__.jpg)
Application Performance Class
Application Performance Class assures minimum random and sequential performance speeds to run and store smartphone apps. Application Performance Class 1 (A1) delivers minimum random read of 1,500 IOPS and random write of 500 IOPS. Application Performance Class 2 (A2) delivers minimum random read of 4,000 IOPS and random write of 2,000 IOPS.