ECS Z77H2-A2X Deluxe User Manual page 26

1. SATA1~6: Serial ATA connectors
SATA3 3~6 connectors are used to support the Serial ATA 3.0Gb/s device, SATA2 1/2
connectors support the Serial ATA 6.0Gb/s device. Simpler disk drive cabling and
easier PC assembly. It eliminates limitations of the current Parallel ATA interface.
But maintains register compatibility and software compatibility with Parallel ATA.
2. ME_UNLOCK: ME Unlock Header
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