Asus RS300-E8-RS4 - Manual (Page 56)

Chapter 4: Motherboard information 4-8
2. PSAS connectors
(7-pin PSAS1, PSAS2, PSAS3, PSAS4, PSAS5, PSAS6, PSAS7, PSAS8
[Light Blue])
This motherboard comes with eight (8) PIKE Serial Attached SCSI (PSAS)
connectors that supports both Serial Attached SCSI (SAS) and Serial ATA
(SATA). Each connector supports one device.
• These connectors function only when you install a PIKE RAID card.
• Connect the SAS hard disk drives to PSAS connectors 1–8 (blue) when
installing a PIKE RAID card.