"The 24 Port 10/100Mbps Ethernet Switch from Cables To Go is perfect for workgroup or department users. The rack mount size metal case design combined with a safety certified internal power supply make this switch a robust solution. This 24-Port Switch is very cost-effective for environments with less than 24 users. The plug-and-play and auto-negotiation capabilities allow the Switch to quickly auto-detect link partners. Each port provides full bandwidth without causing collision problems like traditional hubs. An uplink (cascade) port is provided to link to another Switch, giving you the capability for further expansion. Easy-to-read LED indicators make cable installation and normal operation diagnostics trouble-free. The Switch can be used on desktop or rack mount so you can best utilize your space. Features: Complies with IEEE 802.3/802.3u Ethernet standards. 24 10/100Mbps RJ45 ports. Full and half duplex support. IEEE802.3x flow control support. Built-in 2K MAC address. Built-in 4Mbps memory buffer. Automatic source address learning. Plug-and-play. Easy read LED indicators for installation and operation diagnostics. FCC and CE Certified. Please note - once this item is opened it is non-returnable unless defective."