Supermicro MBD-X7SPE-HF-D525-O. Supported memory clock speeds: 800 MHz, Maximum internal memory: 4 GB, Supported DIMM module capacities: 1GB, 256MB, 2GB, 512MB. RAID levels: 0, 1, 5, 10. PCI Express slots version: 2.0. BIOS type: AMI, BIOS memory size: 1 MB, ACPI version: 3.0. Ethernet interface type: Gigabit, LAN controller: Intel 82574L