Antec's Model MB6811 is ATX Form Factor, Socket 370-based board with 133MHz bus that support the Intel PPGA Celeron microprocessor in ranging clock speeds. The MB6811 utilizes the Intel 440BX/ZX AGPset chipset. This model includes 3DIMM sockets to support 168pin normal (i.e., 66MHz) or PC 133 SDRAM memory up to 768 MB. Its also offer 2 ISA and 5 PCI expansion slots, 2 IDE Ultra 66 ports, a floppy port, a parallel port, 2 serial ports, PS/2 keyboard and mouse ports, and 2 USB ports.