KTD-N0848-B Page 40
6.5 SATA (Serial ATA) Disk interface (J22 – J27)
The KTQ77 boards have an integrated SATA Host controller (integrated in the PCH) that supports
independent DMA operation on six ports. One device can be installed on each port for a maximum of six
SATA devices. A point-to-point interface (SATA cable) is used for host to device connections. Data
transfer rates of up to 6.0Gb/s (typically 600MB/s) on SATA0 and SATA1 (blue connectors) and 3.0Gb/s
(typically 300MB/s) on SATA2, SATA3, SATA4 and SATA5 (black connectors). In case mSATA is used
then the SATA2 is disabled.
The SATA controller supports:
2 to 6-drive RAID 0 (data striping)
2-drive RAID 1 (data mirroring)
3 to 6-drive RAID 5 (block-level striping with parity).
4-drive RAID 10 (data striping and mirroring)
2 to 6-drive matrix RAID (different parts of a single drive can be assigned to different RAID
devices).
AHCI (Advanced Host Controller Interface)
NCQ (Native Command Queuing). NCQ is for faster data access.
Hot Swap
Intel® Rapid Recover Technology
2 – 256TB volume (Data volumes only)
Capacity expansion
TRIM in Windows 7 (in AHCI and RAID mode for drives not part of a RAID volume). (TRIM is for
SSD data garbage handling).
The RAID (Redundant Array of Independent Drives) functionality is based on a firmware system with
support for RAID modes 0 1, 5 and 10.
SATA connector pinning:
The pinout of SATA ports SATA0 (J27), SATA1 (J26), SATA2 (J25), SATA3 (J24), SATA4 (J23) and
SATA5 (J22) is as follows:
PIN Signal Type Ioh/Iol
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