Arbor Technology EmETXe-i250C, User Manual, Page: 14 / 65

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Installation
2.1 What is “COM Express”?
With more and more demands on small and embedded industrial boards, a
multi-functioned COM (Computer-on-Module) is the great one of the
solutions.
COM Express, board-to-board connectors consist of two rows of 220 pins
each.
Row AB, which is required, provides pins for PCI Express, SATA, LVDS, LCD
channel, LPC bus, system and power management, VGA, LAN, and power
and ground interfaces.
Row CD, which is optional, provides SDVO and legacy PCI and IDE signals
next to additional PCI Express, LAN and power and ground signals.
By the way, the target markets of COM will be focused on:
● Retail & Advertising
● Medical
● Test & Measurement
● Gaming & Entertainment
● Industrial & Automation
● Military & Government
● Security