HP 411508-B21 PCI-Express x4 SATA / SAS Smart Array E200/128 Controller Internal Connectors: 8 x SAS Transfer Rate: PCI Peak Data Transfer Rate: 2GB/s SCSI Protocol Support: 3Gb SAS/1.5Gb SATA SCSI Peak Data Transfer Rate: 3Gb/s per port RAID: RAID 0, 1, 1+0 Optional 5 Cache Memory: 128MB Dimensions: 12.3 x 4.4 x 0.6 Parts: 1 year limited Labor: 1 year limited