Sandisk 64gb MicroSDXC UHS-I

andisk ultra has high speed transfer rate to test this please use quality USB 3.0 card reader

Sandisk ultra lets you store tons of media on your phone, load games to your console, or download more apps on your tablet.

Even with huge files, sandisk  ultra is incredibly quick with A1 class 10 rated transfer speeds of 120MB/s. Big apps load and run smoothly, while 4K video remains sharp with A1, and UHS-I Interface.

The sandisk ultra takes on life's adventures with water, temperature, X-ray, magnet, drop and wear out protection.

Widely compatible with mobile phone, tablet, laptop, digital camera, dash cam, monitoring device, etc.

★Adapter is speedless. Please use quality USB 3.0 card reader to test all memory cards by H2testw on PC. Real memory card should pass H2testw with no error. 
★Micro memory sd card speed is greatly affected by many factors card reader,interface, computer condition , test software ,systems, etc.Low quality device will 100% slow down the speed.

Some of the listed capacity on a Flash storage device is used for formatting and other functions and thus is not available for data storage. As such, the actual available capacity for data storage is less than what is listed on the product.