Using Expresscards (Optional); Expresscard Type - Getac 3X02 User Manual

Using ExpressCards (Optional)

Depending on the model, your computer has an ExpressCard slot.
ExpressCard supports the PCI Express and USB 2.0 serial data interfaces (supporting
speeds of up to 2.5 Gbps and 480 Mbps respectively), improving speed in data
transfer while conserving power usage.

ExpressCard Type

The ExpressCard slot can accommodate a 54 mm (ExpressCard/54) or 34 mm
(ExpressCard/34) wide ExpressCard. Typical ExpressCards support a very extensive
range of applications including memory, wired and wireless communication cards,
and security devices.
Shown next are the appearances of ExpressCards for your reference.
ExpressCard/54 ExpressCard/34
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Expanding Your Computer