25CM Extension Cable Micro SD to TF Card Adapter Enhanced version of Universal SD slot to Micro SD (TF) memory card converter, compact and ultra-small size design, easy to install. It is made of sheet FR4 + FFC + plastic, integrated design, firm and durable, not easy to break. Plug and play, fast transfer speed. Easily testing any electronic devices that support Micro SD (TF) memory card for miner hash board chip test fixture, PDA, smartphone, MP3, MP4, digital camera, GPS. It can also be used as an extender or linker when your device has a built-in micro SD memory card slot and you need to expand it to use a larger SD memory card. Supports 16GB, 64GB 32GB SD / SDHC cards with standard TF interface size.