Supermicro X9DRG-HF Server Motherboard - Intel C602 Chipset - Socket R LGA-2011 - Bulk Pack Number of Memory Slots: 8 PCI Express x16: 5 x PCI Express x16 Onboard Video Chipset: G200 Max LAN Speed: Yes CPU Type: Xeon Octa-core Maximum Memory Supported: 256GB USB 1.1/2.0: 2 x USB 2.0 Dimensions (W x L): Width:19.8 Depth:9.2