microSD Cards

USD300S

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.


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 A2 standards, delivering minimum random read of 4,000 IOPS and random write of 2,000 IOPS, and sustained sequential speeds of at least 10MB/s.

A2 compliance applies only to 1TB capacity card.

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-1TB 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 1TB 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.

Learn more

Specifications

Appearance

Dimensions11 mm x 15 mm x 1 mm (0.43" x 0.59" x 0.04")
Weight0.4 g (0.01 oz)

Storage

Capacity
  • 4 GB
  • 8 GB
  • 16 GB
  • 32 GB
  • 64 GB
  • 128 GB
  • 256 GB
  • 512 GB
  • 1 TB
Flash Type
  • 3D NAND flash
  • 2D NAND flash

Operating Environment

Operating Temperature-25°C (-13°F) ~ 85°C (185°F)
Operating Voltage
  • 2.7V ~ 3.6V

Performance

Speed Class
  • UHS-I U3
  • UHS-I U1
  • Class 10
  • V30
  • A1
  • A2
Sequential Read/Write (CrystalDiskMark)
  • 1 TB
    Up to 100/85 MB/s
  • 512 GB
    Up to 100/85 MB/s
  • 256 GB
    Up to 100/40 MB/s
  • 128 GB
    Up to 100/40 MB/s
  • 64 GB
    Up to 100/20 MB/s
  • 32 GB
    Up to 100/20 MB/s
  • 16 GB
    Up to 95/10 MB/s
  • 8 GB
    Up to 20/10 MB/s
  • 4 GB
    Up to 20/10 MB/s
Insertion/Removal Cycles10,000
Note
  • Speed may vary due to host hardware, software, usage, and storage capacity.

Warranty

Certificate
  • CE
  • UKCA
  • FCC
  • EAC
  • RCM
Warranty
  • Five-year Limited Warranty
Warranty Policy
  • Please click here for more information about the Transcend Warranty Policy.

Awards

Gold - Editor’s Choice

Megaobzor
Russia

Gold Award

Nasilemaktech
Malaysia

Editor's Choice

GreenTech Reviews
Russia


Order Information

4GB
  • TS4GUSD300S microSDHC, C10 / 2D NAND Flash
8GB
  • TS8GUSD300S microSDHC, C10 / 2D NAND Flash
16GB
  • TS16GUSD300S microSDHC, C10, U1 / 2D NAND Flash
  • TS16GUSD300S-A microSDHC I, C10, U1 (with adapter) / 2D NAND Flash
32GB
  • TS32GUSD300S microSDHC, C10, U1, A1 / 3D NAND Flash
  • TS32GUSD300S-A microSDHC I, C10, U1, A1 (with adapter) / 3D NAND Flash
64GB
  • TS64GUSD300S microSDXC I, C10, U1, A1 / 3D NAND Flash
  • TS64GUSD300S-A microSDXC I, C10, U1, A1 (with adapter) / 3D NAND Flash
128GB
  • TS128GUSD300S microSDXC, U3, V30, A1 / 3D NAND Flash
  • TS128GUSD300S-A microSDXC I, U3, V30, A1 (with adapter) / 3D NAND Flash
256GB
  • TS256GUSD300S-A microSDXC I, U3, V30, A1 (with adapter) / 3D NAND Flash
512GB
  • TS512GUSD300S-A microSDXC I, U3, V30, A1 (with adapter) / 3D NAND Flash
1TB
  • TS1TUSD300S-A microSDXC I, U3, V30, A2 (with adapter) / 3D NAND Flash

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