Asus RS720-E7/RS12 - Manual (Page 60)

4-8 Chapter 4: Motherboard information
4.3 Internal connectors
1. Serial ATA 6.0/3.0 Gb/s connectors
(7-pin SATA6G_1-2 [Blue], and 7-pin SATA3G_3-6 [Black])
Supported by the Intel
® 602 Chipset, these connectors are for the Serial ATA
signal cables for Serial ATA hard disk drives that allows up to 6Gb/s of data
transfer rate.
If you installed Serial ATA hard disk drives, you can create a RAID 0, RAID 1,
RAID 10, or RAID 5 configuration.
2. SATA connector -- ISAS connectors
Supported by the Intel ® C602 PCH. ISAS 1-4 connectors can connect to
serial ATA 3Gb/s hard disk drives.
The actual data transfer rate depends on the speed of SATA hard disks installed.