Sata Interface; Hot-Plug Compatibility; Sata Device Plug Connector Pin Definitions - Seagate ST4000DM000 Product Manual

4.0 SATA Interface

These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports
ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.
For detailed information about the SATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment"
specification.

4.1 Hot-Plug compatibility

Desktop HDD drives incorporate connectors which enable you to hot plug these drives in accordance with the
SATA Revision 3.0 specification. This specification can be downloaded from www.serialata.org.

4.2 SATA device plug connector pin definitions

Table 5 summarizes the signals on the SATA interface and power connectors.
Table 5 SATA connector pin definitions
Segment Pin Function
S1 Ground
S2 A+
S3 A-
S4 Ground
S5 B-
S6 B+
Signal S7 Ground
Desktop HDD SATA Product Manual, Rev. C
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
Key and spacing separate signal and power segments
25