Receive board. CPU i5-3570K installed Ram 8GB 1600MHZ with run on. Zero problems and Superfast. All peripheral functions with me tadelos (USB Headset 5.1, Hercules Sound System 5.1, USB Logitech G19 Tatstaur, USB mouse from SteelSeries, USB III NAS drive etc ....) UEFI settings are terrific and leave you wanting for overclockers open. The ASRock Z77 Pro is an inexpensive board and fights almost in the same performance class as more expensive Gigabyte or Asus boards. USB III functionality is top and also through the Ivy Bridge CPU can even be a future graphics card of the PCI Express Generation 3 use.