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Figure 3-4 Maximum dimensions of the internal hard disk
Hard Disk Connector
The internal hard disk has a 48-pin connector that carries both the ATA signals and the power for the drive.
The connector has the dimensions of a 50-pin connector, but with one row of pins removed, as shown in
Figure 3-5 (page 35). The remaining pins are in two groups: pins 1–44, which carry the signals and power,
and pins 45–48, which are reserved. Pin 20 has been removed, and pin 1 is located nearest the gap, rather
than at the end of the connector.
34
Hard Disk Drive
Legacy Document | 2003-03-01 | © 2003 Apple Computer, Inc. All Rights Reserved.
CHAPTER 3
Devices and Ports