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File:IBM PS2 MCA Model 55 SX, hard drive cabling and riser.jpg

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IBM_PS2_MCA_Model_55_SX,_hard_drive_cabling_and_riser.jpg (640 × 480 pixels, file size: 41 KB, MIME type: image/jpeg)

Summary

Description
English: Connections of the unusual IBM PS/2 Micro-Channel Architecture (MCA) cabling, riser card, and hard drive.

This single connector conveys both power and data to the drive; mounting a generic IDE or MFM hard drive inside a PS/2 was impossible because separate 4-wire power connectors were not provided.

The actual communication standard is unknown, but is strongly suggested to have been ESDI. PS/2 systems could accept only one hard drive; no further internal capacity expansion was permitted.
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Author DMahalko, Dale Mahalko, Gilman, WI, USA -- Email: dmahalko@gmail.com

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Date/TimeThumbnailDimensionsUserComment
current00:20, 21 September 2008Thumbnail for version as of 00:20, 21 September 2008640 × 480 (41 KB)DMahalko{{Information |Description={{en|1=Connections of the unusual IBM PS/2 Micro-Channel Architecture (MCA) cabling, riser card, and hard drive. This single connector conveys both power and data to the drive; mounting a generic IDE or MFM hard drive inside a

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