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15/16) SSATA_SGP/SATA_SGP (SATA SGPIO Headers)
SGPIO stands for Serial General Purpose Input/Output which is a 4-signal (or 4-wire) bus used between
a Host Bus Adapter (HBA) and a backplane. Out of the 4 signals, 3 are driven by the HBA and 1 is driven
by the backplane. Typically, the HBA is a storage controller located inside a server, desktop, rack or
workstation computer that interfaces with Hard disk drives (HDDs) to store and retrieve data.
17/18) SAS_SGP1/SAS_SGP2 (SAS SGPIO Headers)
SAS_SGP1
SAS_SGP2
Hardware Installation
7
SATA_SGP
1
SSATA_SGP
7
8
1
2
- 25 -
Pin No. Definition
1
DATAIN
8
2
No Pin
3
DATAOUT
4
GND
2
5
GND
6
LOAD
7
NC
8
CLOCK
Pin No. Definition
1
DATAIN
2
No Pin
3
DATAOUT
4
GND
5
GND
6
LOAD
7
NC
8
CLOCK
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