1*USB 3.0 & 3*USB 2.0 - The 3.0 port of USB extender hub support the transmission speed of up to 5Gbps, and all ports are compatible with the transmission speed of 480Mbps (USB 2.0) and 12Mbps (USB 1.1). Widely Compatible USB Extender - Ultra-Slim 4 port USB hub for connecting up to 4 USB devices, e.g. Memory sticks, hard disks, mice, keyboards, printers, digital cameras, camcorders, speakers, scanners, card readers, and more USB Drives. Anti-Fingerprint & Portable - 0.27in ultra-thin design, Less than a finger thick. The small body of less than 50g is very portable. The shell is made of sandblasted aluminum alloy, which resists oxidation, fingerprints, dust, and improves comfort and durability. Plug And Play - No driver or software, plug and play. Built-in upgrade smart chip, provide overvoltage, overcurrent and short circuit protection, stable data transmission, ensure device safety. One Machine For Multi - Expand 1 USB port to 4 USB ports, which can meet your various needs at the same time, a small USB 4-port hub can solve your troubles. If you have any questions, you can contact us.