ASRock AD2550R/U3S3 Mini ITX Server Motherboard DDR3 1066 CPU Type: Intel Atom D2550 1.86GHz 2-Core South Bridge: Intel ICH10R Number of DDR3 Slots: 2 x 204pin Maximum Memory Supported: 4GB PCI Express 3.0 x16: 1 SATA: 5 x SATA 3.0Gb/s SATA RAID: 0/1/5/10 Additional SATA: Marvell SE9172: 2 x SATA3 6.0 Gb/s