Gigabyte GA-M55SLI-S4 (rev. 2.0)

AMD Athlon™64 X2/ Athlon™64 socket AM2 platform
Supports high performance Dual Channel DDR2 800 memory
NVIDIA SLI Multi-GPU function for extreme graphics performance
Integrated NVIDIA SATA 3Gb/s with RAID function
Optimized Gigabit LAN connection
Enhances security with NVIDIA TCP/IP Acceleration technology
Integrated T.I. IEEE1394 FireWire interface
Integrated high quality 8-channel AC'97 audio