The KIWIFOTOS USB 3.0 Hub (Type A) provides 4 extra USB ports to connect multiple USB devices. Compatible with: 2.4Ghz wireless devices such as flash drive, keyboard & mouse, phone & tablet, card reader, mobile hard drive, printer and more High Speed Data Transfer: The 4 USB ports are all USB 3.0 interfaces, with high speed data transfer up to 5Gbps. The hub adopts plug and play design and supports to use 4 ports simultaneously. Multiple Protection: With GL3510 chip, the hub can provide your devices with short circuit protection, temperature protection, over power protection, over charge protection, over discharge protection, over voltage protection and over current protection. Compact and Portable: Product Dimension: 95 x 22.5 x 17.9mm / 3.74 x 0.89 x 0.70", compact and portable hub can be put easily in your pocket, handbag or backpack. Supported Systems: Windows 10, 8, 7, Vista, XP Max OSx 10.6-10.12 or later Linux 2.6.14 or Later Please Note: 2.4Ghz wireless devices, such as wireless keyboard and mouse adapters, may not work in close proximity to USB 3.0 devices or hubs. Connecting to a USB 2.0 port is recommended. For a stable connection, the devices connected to the 4-port USB 3.0 hub must not exceed a combined current of 5 volts 900mAh. 2.5" and 3.5” mechanical hard-drives should be connected to an external power source. This 4-port USB 3.0 hub will not charge your devices, it will only sync. Specifications: Product Dimension: 95 x 22.5 x 17.9mm / 3.74 x 0.89 x 0.70" Cable length: 10cm / 3.9" Material: PC+PVC Net Weight: 29g