Benchmark Reviews posted a review on the ASUS P8Z77-I Deluxe/WD mini-ITX Motherboard

Small form factor (SFF) systems seem to have reached critical mass. Although they've been available for years from companies like Shuttle making custom motherboards, they've crossed into the mainstream. Enthusiast level micro ATX motherboards are available from a number of vendors, and we're now seeing the first of a new crop of enthusiast level mini ITX motherboards. ASUS has stepped up to the plate with their P8Z77-I Deluxe/WD motherboard, which I first saw months ago at an ASUS technology conference in Dallas.

Micro ATX motherboards are the same front-to-back depth (244mm) as standard ATX motherboards, but their reduced width means there's only room for four slots. Mini ITX motherboards, on the other hand, are much smaller, at a mere 170x170mm.

  ASUS P8Z77-I Deluxe/WD mini-ITX Motherboard Review