ASRock H87WS-DL ATX Server Motherboard LGA 1150 Intel H87 DDR3 1600/1333 CPU Type: Supports Intel Haswell i7, i5, i3 processors *Xeon processor E3-1200 v3 series processor support is an extended advantage provided by ASRock Rack. It is out of warranty, user's discretion is required. Number of DDR3 Slots: 4 x 240pin Maximum Memory Supported: 32GB Channel Supported: Dual Channel PCI Express 3.0 x16: 1 slot (PCIE6: x16 mode) PCI Express 2.0 x16: 1 slot (PCIE2 : x4 mode) PCI Slots: 2 x PCI Slots SATA: 6 x SATA 6.0Gb/s