Lenovo ThinkServer 8708EM2, SAS, Serial ATA, PCI Express x8, 0, 1, 5, 10, 50, 60, 3 Gbit/s, 256 MB, DDR2 Lenovo ThinkServer 8708EM2. Supported storage drive interfaces: SAS, Serial ATA, Host interface: PCI Express x8. RAID levels: 0, 1, 5, 10, 50, 60, Data transfer rate: 3 Gbit/s, Internal memory: 256 MB. Processor frequency: 500 MHz, Processor family: PowerPC. Width: 18.7 mm, Depth: 167.7 mm, Height: 64.4 mm. PCI Card form factor: Half-height (low-profile)