Gigabyte GA-G33M-DS2R Intel® G33 + ICH9R Chipset. Supported memory types: DDR2 1066/800/667, Maximum internal memory: 8 GB. Processor family: Intel, Processor socket: Socket 775, Processors compatible: Intel® Core™2 Extreme/ Core2™ Quad / Core™2 Duo / Intel® Pentium® Extreme/ Intel® Pentium® D. Audio system: Realtek ALC889A, Audio output channels: 7.1. Width: 244 mm, Depth: 244 mm. LAN controller: Realtek RTL8111B