
Cables and Connectors 355
f. 1 pin for presence detection;
g. 2 pins for Vendor Specific/Manufacturing;
h. 2 pins for Two Wire Interface;
i. 19 reserved pins (no connect); and
j. 1 pin to indicate mSATA use (no connect).
SATA Connector Placement
The SATA standard defines the connector location on a drive as shown in Figure 8.12.
○ This connector placement is also observed by SAS drives for compatibility.
Pin Type Description
P40 GND Ground
P41 +3.3 V 3.3 V Source
P42 Reserved No Connect
P43 Device Type Shall be a No Connect on mSATA Devices
P44 DEVSLP Enter/Exit DevSleep
P45 Vendor Vendor Specifi c / Manufacturing Pinb
P46 Reserved No Connect
P47 ...