New PCI-SIG M.2 Interface Spec Released for Mobile Broadband Modem Modules

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1Q 2014 | IN-1018090


Next-generation Add-in Card Interface Benefits SSDs and Mobile Broadband


The concept of attaching add-in modules to computing devices has been around for decades. Desktop PCs originally used expansion slots to enhance graphic, audio, and multimedia capabilities. As computing became a portable use case, notebook computers incorporated connectors for embedded (PCIe Mini Card) and user-accessible (PCMCIA and PCI ExpressCard) add-in products.

The continued miniaturization of computing in the form of mobile devices is now requiring new interfaces to support the thin and light ultraportable systems as well as tablet form factors. Originally called “Next-generation Form Factor (NGFF),” the M.2 specification is designed to replace PCIe Mini Cards and the mSATA storage specification.

Managed by PCI-SIG, the M.2 specification is a revision of v1.0 and supports a range of add-in cards offering multiple functions, such as SSD storage, NFC, and the latest in Wi-Fi and B...

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