Use this Intel D865GLCLK mATX motherboard to upgrade or build-your-own socket 478 system! Based on the Intel 865G chipset, this Intel D865GLCLK motherboard supports socket 478 Intel Pentium 4 processors with a 400/533/800 MHz system bus and Intel Celeron processors with 400 MHz system bus. Four DIMM sockets support up to 4 GB of DDR memory.Graphics are provided by an Intel Extreme Graphics 2 controller while audio is handled by the Analog Devices AD1981B codec. Connect to a network with the integrated Gigabit Ethernet LAN. There is plenty of room for expansion with three PCI slots and one AGP slot.The Intel D865GLC has plenty of I/O ports such as six USB ports so you can add a number peripherals! Whether you're building your own system or upgrading, let this affordable Intel D865GLCLK mATX motherboard lead the way!