I/O Shields; Half-Height Back Panel I/O Shield - Intel DQ77KB Specification

2.3

I/O Shields

Two I/O shields are provided with the board:
Half-height I/O shield
•
Standard-height I/O shield
•
The half-height I/O shield allows access to all back panel connectors while being
specifically designed for thin mini-ITX chassis, compliant with version 2.0 of the Mini-
ITX Addendum to the microATX Motherboard Interface Specification. As an added
benefit for system configurations with an internal TV tuner in the PCI Express Mini
Card form factor, the I/O shield also provides a pre-cut hole for user installation of an
F-type external antenna connector. Also, the yellow band around the right-most pair
of USB 3.0 ports indicates support for high-current USB charging.
The standard-height I/O shield provides access to all the same connectors as the half-
height I/O shield while being compatible with standard mini-ITX and microATX chassis.
In addition to the F-type pre-cut hole, the standard-height I/O shield also provides
pre-cut holes for user installation of two external wireless antennas for system
configurations with wireless PCI Express Mini Card solutions.
Figure 19 and Figure 20 are I/O shield reference diagrams.
Figure 19. Half-Height Back Panel I/O Shield
Technical Reference
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