Express Card

Express Card:

ExpressCard is a hardware standard replacing PC cards (also known as PCMCIA cards), both developed by the Personal Computer Memory Card International Association (PCMCIA). The host device supports both PCI Express and USB 2.0 connectivity through the ExpressCard slot, and each card uses whichever the designer feels most appropriate to the task. The cards are hot-pluggable. This is an open standard by ITU-T definition which can be obtained from the ExpressCard website. However, a US$2,500 fee[1] is required to access the documentation for non-PCMCIA members.


Uses
These slots can accept Firewire 800 (1394B), Serial ATA external disk drives, Solid-state drives, Wireless network interface cards, TV tuner cards, soundcards, additional memory and memory card readers, among other things.


Form factors:
ExpressCard supports two form factors, ExpressCard/34 (34 mm wide) and ExpressCard/54 (54 mm wide, in an L-shape) — the connector is the same on both (width 34 mm). Standard cards are 75 mm long (10.6 mm shorter than CardBus) and 5 mm thick, but may be thicker on sections that extend outside the standard form — for antennas, sockets, etc. The 34 mm form factor cards fit into both 34 mm and 54 mm card slots via a diagonal guide in the rear of the 54 mm slot that guides the card to the connector. The 54 mm card will fit in only a 54 mm slot.

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