5 in 1 Capability USB HubTsupy USB 3.0 Hub with 5 interfaces: 3 USB 3.0 ports, and SD/TF card readers. With the usb A adapter you could turn one of your computers USB port into three,3 USB devices work simultaneously is fine, such as keyboard, mouse,hard drives, USB disk and much more; the other 2-slots card reader for SD/SDHC/Micro SD/TF cards and more.Please use the memory card reader one or the other not both. USB 3.0 (5Gbps) Hub Superspeed Data TransferUSB 3.0 extension Hub faster performance to support the transmission of large amounts of data in seconds ,high speed data transfer up to 5 Gbps, save your time and no losses of connection. Also backwards compatible with USB 2.0/1.1/1.0.