H61M-P21 LGA1155 MAX-16GB 2DDR3 Matx D-sub Onboard VGA CPU: Socket 1155 Support Intel Sandy Bridge Processors; Chipset: Intel H61 (B3) Chipset Memory: 2x 240pin DDR3-1333/1066 DIMMs, Dual Channel, unbuffered, Max Capacity Upto 16GB; Slots: 1x PCI-Express 2.0 x16 Slot; 3x PCI-Express 2.0 x1 Slots SATA: 4x SATA2 Ports; Audio: VIA VT1708S Flexible 8-channel Audio Codec, w/jack sensing; LAN: Atheros AR8152 PCI-Express Fast Ethernet Controller Ports: 10x USB 2.0 Ports (4 rear, 6 by header); 2x PS/2 Ports; 1x VGA Port; 1x Parallel Port; 1x Serial Port; 1x RJ45 LAN Port; Audio I/O jacks Power Connector: 1x 24pin main power connector, 1x 4pin CPU power connector