With a flexible, modular design, the Intel Express 330T Stackable Hub lets you put affordable performance right where you need it, when you need it. Each port automatically senses either 10 or 100Mbps Ethernet, so you can individually match network speed to desktop need, putting higher performance only where it's required. And because each Intel Express 330T Stackable Hub is only 1 Rack-mount Unit (RU) in height, you can fit more ports into a smaller space. Two expansion slots provide optional management and distance extension capabilities.