Simplecom CHN420 Silver Aluminium 3 Port SuperSpeed USB HUB with Gigabit Ethernet Adapter Access and transfer data more efficiently. Three SuperSpeed USB ports support data transfer rates of up to 5Gbps, and RJ45 Gigabit Ethernet port supports up to 1000Mbps transfer speed. CHN420 is sturdy and durable with premium aluminium body. Simple and easy to use with 3 USB ports on the top and an innovative built-in RJ45 Gigabit Ethernet adapter on the end, accommodate your collection of USB device without cluttering your desk space. Features 3 Port SuperSpeed USB 3.2 Gen1 (USB 3.0) Hub with Gigabit Ethernet adapter Aluminium unibody, durable and premium quality 3 SuperSpeed USB ports support speeds of up to 5Gbps Built-in Gigabit Ethernet supports up to 1000Mbps transfer speed LED indicator for power and network connection status USB powered, no external power required Easy to Install, plug and play, no additional driver needed Ideal for Chromebooks, Ultrabooks without Ethernet port Support Windows 7 and above (32/64-bit), Mac OS 10.6 and above Specifications USB Specification_ USB 3.2 Gen1 (formerly known as USB 3.0) Interface_ SuperSpeed USB-A Male Power_ USB bus-powered / self-powered Working current_ <300 mA +/- 10 mA Ethernet_ IEEE 802.3, IEEE 802.3u, IEEE 802.3ab (10BASE-T, 100BASE-TX, 1000BASE-T) Network protocols_ IPv4 and IPv6 Operating temperature_ 0 – 50 Celsius Operating humidity_ 10 - 85% RH, non-condensing Dimensions_ 87 x 24 x 17mm Operating Systems_ Windows 7 and above (32/64-bit), Mac OS 10.6 and above, Chrome OS