[5 Pack] eTECH Collection USB2.0 SDHC/SDXC Memory Card Reader / Writer -- support SanDisk Kingston 258GB 128GB 64GB SDXC SDHC SD MMC Ultra SDHC Extreme SDXC (Upgraded Version, Support SDXC) (Black) Easy to take, use and install, no additional software installation required. High Speed USB 2.0 interface, backward compatible with USB 1.1. Subject to the speed of memory card itself upto USB2.0 Speed Powers via USB port, no additional power supply needed. 1 year manufacturer warranty