Intel Server Motherboard S1200V3RPL LGA 1150 DDR3 1600 CPU Type: Intel Xeon E3-1200 V3 Other Chipset: Intel Lynx Point C226 chipset Number of DDR3 Slots: 4 x 240pin Maximum Memory Supported: 32GB Channel Supported: Dual Channel ECC Supported: Yes PCI Express 3.0 x16: 1 PCI-E Gen3 x16 slot w/ x16 connector for 1U rack in Slot 6 position (muxed with Slot 5 and SAS module) PCI Express x8: 1 PCIe G3 x8 w/ x8 connector in Slot 5 position (turned off if x16 is used in Slot 6, or SAS module installed) x0A1 PCIe G2 x4 w/ x8 connector in slot 4 position x0A1 PCIe G2 x1 w/ x8 connector in Slot 7 position