JSER Mini Size 5Gbps Super Speed USB 3.0 to Micro SD SDXC TF Card Reader Adapter JSER Mini Size 5Gbps Super Speed USB 3.0 to Micro SD SDXC TF Card Reader Adapter USB 3.0 interface. High speed data transfer up tp 5 Gbps. Powers via USB port, no additional power supply needed. Compatible for Windows ME,2000,XP,Vista,WIN 7 and Mac OS with USB interfac Card Compatibility: MICRO SD/SDXC/TF card