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Information: PCMCIA Slot Specifications and Types

This article was previously published under Q122054
This article has been archived. It is offered "as is" and will no longer be updated.
This article contains a list of PCMCIA card sizes and types.

Physical Specifications

PCMCIA cards have one of the following standard physical dimensions:
Type I Card         54 mm by 85.6 mm by 3.3 mmType II Card        54 mm by 85.6 mm by 5 mmType III Card       54 mm by 85.6 mm by 10.5 mm				
The PCMCIA card size is the same as a standard credit card except forthickness and corner rounding. Sometimes PCMCIA cards are referred to ascredit-card memory or adapters.

Certain Toshiba notebook computers and other machines have a non-standard,oversized slot for which there are non-standard, oversized cards rangingfrom 14.5 millimeter (mm) to 16 mm (or more) thick. These cards and slotsare sometimes incorrectly referred to as "Type IV." This size card willprobably not become part of the PCMCIA standard.

A Type II card has the same thickness as a Type I card along the long sidesand connector end; this provides mechanical compatibility. A bubble 0.85 mmthick on the top and bottom surfaces increases the card's total thicknessto 5 mm. A Type III card has a additional 5.5 mm on the top surface bubblefor a total thickness of 10.5 mm.

The standard allows a maximum card length of 135.6 mm, which means the cardcan extend outside the host. This accommodates bulky devices such asbatteries, oversized connectors, removable media, transceivers, and theantenna required by some devices.
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Article ID: 122054 - Last Review: 12/04/2015 10:39:53 - Revision: 2.0

Microsoft Windows 3.1 Standard Edition, Microsoft Windows 3.11 Standard Edition, Microsoft Windows for Workgroups 3.1, Microsoft Windows for Workgroups 3.11

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