Asus TS300-E6/PS4 - Manual (Page 64)

Chapter 4: Motherboard information 4-10
3. SAS connectors (7-pin SAS1–4 [Red]; 7-pin SAS5–8 [Blue])
This motherboard comes with eight (8) Serial Attached SCSI (SAS)
connectors, the next-generation storage technology 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 SAS connectors 1–4 (red) when
installing a 4-port PIKE RAID card.
4. USB connector (10-1 pin USB34, USB56; A-Type USB7)
These connectors are for USB 2.0 ports. Connect the USB module cables
to connectors USB34, then install the modules to a slot opening at the
back of the system chassis. These USB connectors comply with USB 2.0
specification that supports up to 480 Mbps connection speed.