Tendak USB 3.0 HUB Superspeed 2-Port USB to Lan Gigabit Ethernet Converter Cable USB Network Adapter with Card Reader USB to gigabit Ethernet, SD/Micro SD card reader and 2-Port USB3.0 HUB interface USB over Ethernet: USB3.0 10/100/1000M network speed, the full/half double work fast Ethernet connection Dual Card Reader: 1 x SD interface and 1 x micro SD interface; Support dual card to read singly,which support SDHC, SDXC, MicroSD, TF Card USB HUB: USB3.0 provides high data transfer speed up to 5Gbp/s, backwards compatible with USB 2.0/1.1 devices Function as Card reader and HUB without driver can support windows 8.1/8/7/XP/Vista Mac OS 8.6 or later; Function as network adapter with driver can support windows 8.1/8/7/XP/Vista Mac OS 10.5 or later, especially for Mac OS 10.9 without drives