Connector Location; Dc Power Connector; At Signal Connector; Electrical Interface Specification - Hitachi 7K250 - Deskstar - Hard Drive Specifications

7.0 Electrical interface specification

7.1 Connector location

Refer to the following illustration to see the location of the connectors

7.1.1 DC power connector

The DC power connector is designed to mate with AMP part number 1-480424-0 using AMP pins part number
350078-4 (strip), part number 61173-4 (loose piece), or their equivalents. Pin assignments are shown in the figure
below.

7.1.2 AT signal connector

The AT signal connector is a 40-pin connector.
Figure 10 : Connector location
4 3 2
Figure 11 : Power connector pin assignments
Deskstar 7K250 Hard Disk Drive Specification
Pin Voltage
1 1 +12 V
2 GND
3 GND
4 +5V
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