Asrock z170 extreme7 socket lga 1151 dvi d hdmi displayport 71 ch hd audio atx motherboard product specifications general unique feature asrock usb 31 asrock front usb 31 panel 1 x usb 31 type a port 1 x usb 31 type c port asrock rear usb 31 type a port 10 gbs asrock rear usb 31 type c port 10 gbs asrock super alloy xxl aluminum alloy heatsink premium 60a power choke premium memory alloy choke reduces 70 core loss compared to iron powder choke dual stack mosfet dsm com