Asus P4PE User's Guide download pdf (Page 47)

ASUS P4PE motherboard user guide

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5. Serial ATA connectors (7-pin PRI_SATA1, SEC_SATA2)

These next generation connectors support the thin Serial ATA cables

for primary internal storage devices. The current Serial ATA interface

allows up to 150 MB/s data transfer rate, faster than the standard

parallel ATA with 133 MB/s (Ultra ATA/133).

Important notes on Serial ATA solution:

• The low-voltage requirement of 500 millivolts (mV) peak-to-peak

will effectively minimize, if not totally eliminate, the 5V signalling

requirement in the current Parallel ATA interface.

• The Serial ATA cable is smaller and more flexible allowing easier

routing inside the chassis. The lower pin count of the Serial ATA

cable eliminates the problem caused by the wide, flat ribbon cables

of the Parallel ATA interface.

P4PE

P4PE SATA Connectors

PRI_SATA

SEC_SATA

GND

RSATA_TXP1

RSATA_TXN1

GND

RSATA_RXP1

RSATA_RXN1

GND

RSATA_TXP2

RSATA_TXN2

GND

RSATA_RXP2

RSATA_RXN2

GND

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Asus P4PE User's Guide Page 47