Recently, ASUS released the Maximus IV Extreme-Z, a variant of the Maximus IV Extreme motherboard, based on Intel Z68 chipset. The original is based on Intel P67. ASUS' premium micro-ATX motherboard, the Maximus IV Gene got the same treatment, with Gene-Z. Back when ASUS was designing its Republic of Gamers lineup for socket LGA1155, P67 was the premium discrete-graphics chipset, which was later dethroned by Z68, which gives you everything P67 does, plus access to the processor's integrated graphics (letting you use Intel QuickSync), and Intel Smart Response SSD caching technology.

The Maximus IV Gene-Z uses a design very similar to its predecessor. The LGA1155 socket is powered by an impressive 12-phase Digi+ Extreme Engine VRM, 2-phase VRM for the dual-channel DDR3 memory, supporting speeds as high as DDR3-2000 MHz. Expansion slots include two PCI-Express 2.0 x16 (x16/NC or x8/x8), supporting NVIDIA SLI and AMD CrossFire; and an open-ended PCI-E x4. ASUS managed to pack in two SATA 6 Gb/s ports, four SATA 3 Gb/s ports, and connectivity that includes SupremeFX X-Fi 8-channel audio, eSATA, gigabit Ethernet, USB 3.0, and HDMI 1.4a (the lone display connector). ASUS nearly all ROG-exclusive features such as consolidated voltage measurement points, iROG, ROG UEFI, etc.