or two expansion slots, designed for half-height or riser card applications.

Other smaller BTX sizes include: microBTX at 10.4 xx 10.5 in and nano BTX at 8.8 xx 10.5 in.

The heat sink to be attached to the CPU, called "Thermal Module" throughout the official specification, is no longer attached solely to the motherboard, but to the casing itself, so that the inertial load of its mass during a mechanical shock event can no longer damage the motherboard.

The structural interface between

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