Seagate 810 manual ATA interface connector, Dimensions are in inches mm

Marathon 810 (ST9816AG) Product Manual, August 1995 19

2.5 ATA interface connector

The drive connector is a 44-conductor connector with 2 rows of 22 male pins on 0.079-inch (2-mm) centers (see Figures 4 and 5). The mating cable connector is a 44-conductor, nonshielded connector with 2 rows of 22 female contacts on 0.079-inch (2-mm) centers. The connectors should provide strain relief and should be keyed with a plug in place of pin 20.

These drives are designed to support the industry-standard MCC direct- mounting specifications. When installing these drives in fixed mounting applications, use only MCC-compatible connectors such as Molex part number 87368-442x. For applications involving flexible cables or printed circuit cables (PCCs), use Molex part number 87259-4413 or equivalent to connect the drive to the system. Select a connector that provides adequate clearance for the master/slave configuration jumpers if the application requires the use of such jumpers. The ATA interface cable should be no more than 18 inches long.

Note. The I/O connector pins may extend up to 0.010 inches beyond the edge of the head/disc assembly.

Dimensions are in inches (mm)

				Master/slave jumpers			0.152 ± 0.005
							(3.71 ± 0.20)
0.079 ± 0.003			0.020 ± 0.002				0.020 ± 0.002
(2.00 ± 0.08)		(0.51 ± 0.05)					(0.51 ± 0.05)
	1.654 (42.01)				0.079 ± 0.003 (2.00 ± 0.08)
						0.158 ± 0.003 (4.00 ± 0.08)

Figure 4. ATA Interface connector dimensions (for reference only)