Brand: HOCO TF high speed memory card micro-SD TF card high speed memory micro-SD with different storage capacities 4Gb 8Gb 16Gb 32Gb 64Gb 128Gb. Designed for any kind of portable electronic gadgets such as laptops, tablets, computers, MP3 players, PDAs, video game consoles, electronic keyboards, synthesizers, GPS devices, mobile phones and digital cameras. Storage: MLC. The cards are also reusable, this gives you the flexibility of use. TF card or Micro SD cards are certainly the smallest flash memory cards available. Memory card grade is Class 10 (for 8Gb, 16Gb, 32Gb, 64Gb, 128Gb) and also Class 6 (for 4Gb). You can remove the content of any of the cards, perhaps from the card to a PC, and then use the extra space offered by the removal for storing other important files as well. Card capacity and reading speed:8Gb (75MB / sec),16Gb (85MB / sec),32Gb (90MB / sec),64Gb (95MB / sec),128Gb (90MB / sec). 1 Year Warranty