MSi 990XA-GD55 AM3/AM3+ Ready RD980+SB950 Motherboard. Opened box, but never used. Specs: Part Number: 990XA-GD55 Memory type: DDR3 2133/1800/1600/1333 MHz Motherboard structure: ATX CPU interface: AMD AM3+ Chipset: AMD 990A + SB950 Memory channel: Dual channel Maximum memory capacity: 16G CPU Support : AMD FX/Phenom II/Athlon II/Sempron Track Page Views With Auctiva's Counter.