Product Description ASRock X99 Extreme4 Motherboard The ASRock X99 Extreme 6 will be ASRock’s high-end X99 offering, the board will fall just below the X99 Extreme 9, which is expected to come later. The board will feature a 12-phase super alloy power design. Power to the board comes by way of a 24-pin ATX power connector and a 8-pin EPS connector. The Super Alloy design makes use of 50G Aluminum Alloy heatsinks, Premium Alloy Chokes, Dual-Stack MOSFETs, and Japanese made high-quality conductive polymer capacitors. Expansion slots on the board include three PCI-Express 3.0 x16 and two PCI-Express 3.0 x1 slots. For storage you have 10 SATA 6GB/s ports, a single SATA Express port, M.2 and two USB 3.0 headers. It looks like there is a debug LED screen along with power and reset buttons towards the bottom of the board