CPU - AMD Athlon 64 X2, Athlon 64 and Sempron in the Socket AM2 package. Please refer to CPU Support for compatible CPU; the above description is for reference only. Hyper Transport Bus - HyperTransport 1.0/2.0 supporting speed up to 1GHz (2000MT/s) Chipset - NVIDIA MCP61 (P/S/V) Main Memory - Supports Dual Channel DDR2 533/667/800 - 2 DDR2 DIMMs (240pin / 1.8V) - Supports a maximum memory size up to 8GB. Slots - One PCI Express x16 slot. (K9N6PGM-FI/F) - One PCI Express x1 slot. - Two PCI slots (support 3.3v/5v PCI bus interface). MSI Reminds You... - K9N6SGM-V doesn't support ATI X550, x1050, X700, X800, X850 and X1800XL series graphic cards. On-Board IDE - One IDE port by NVIDIA MCP61 (P/S/V) - Supports Ultra DMA 66/100/133 mode - Supports PIO, Bus Master operation mode - Can connect up to two IDE devices On-Board SATA - Two SATA II ports by NVIDIA MCP61 (P/S/V) - Supports storage and data transfers at up to 3Gb/s RAID Function - SATA II 1~2 supports RAID 0, 1 mode by NVIDIAMCP61 (P/S/V) MSI Reminds You... - The RAID setup floppy disk is optional depending on the districts. You can download the files from the website to make the setup disk. Audio - Chipset integrated by Realtek ALC861/883/888 - Flexible 8-channel audio with jack sensing - Compliant with Azalia 1.0 Spec LAN - Supports 10/100 Fast Ethernet by Realtek 8201CL (K9N6SGM-V, K9N6VGM-V) - Supports 10/100/1000 Fast Ethernet by Realtek 8211BL-GR (K9N6PGM-FI/F) IEEE1394 / FireWire - Chipset integrated by VIA VT6308P - Transfer rate is up to 400Mbps Internal I/O Connectors - ATX 24-pin power connector - 4-pin ATX 12V power connector - CPU / System FAN connectors - CD-in connector - 1 x Floppy disk drive connector - 2 x SATA II connectors - 1 x ATA133 connectors - 2 x USB 2.0 connector support additional 4 ports - 1 x IEEE1394 connector support additional 1 ports (Optional) - SPDIF-Out connector - Front panel connector - Front panel audio connector - Chassis intrusion switch connector - Clear CMOS Jumper MSI Reminds You... - The floppy disk cable will be optional. Back Panel I/O Ports - 1 x PS/2 Keyboard - 1 x Parallel port - 1 x Serial port - 1 x PS/2 Mouse - 1 x VGA port - 1 x IEEE1394 port (Optional) - 1 x 6 in 1 audio jack - 4 x USB 2.0 - 1 x RJ45 LAN Jack Dimension - 24.4cm(L) x 20.5cm(W) Micro-ATX Form Factor