Adaptec RAID 51245 SATA/SAS 16-port (12 internal,4 external) 512MB PCI Express X8 Controller Card 2268100-R.Part Number: 2268100-RModel Number: RAID 51245Specifications:Type SATA / SASExternal Connectors 1 x SFF-8088 mini SAS 300 - Serial Attached SCSIInternal Connectors 3 x SFF-8087 mini SAS 300 - Serial Attached SCSIInterface PCI-Express x8Transfer Rate 300 MBps Per PortCache Memory 512 MB DDR2RAID 0/1/1E/5/5EE/6/10/50/60