The folks over at PCWorld have managed to get their hands on one of Gigabyte's upcoming motherboards, the GA-Z87X-OC, which seems to be a fairly well-built and solid motherboard, with a very broad feature set.
The motherboard is built on an orange and black PCB design, features the LGA 1150 socket, and is backed by the Z87 chipset. Furthermore, it features four PCIe x16 3.0 slots, two legacy PCI slots, and a PCIe x1 3.0 slot. Other internal connectivity is handled by six SATA3 ports, two USB A 2.0 ports, a handful of USB 2.0 ports, as well as a USB 3.0 header, a 24-pin ATX power supply connector, an 8+4-pin EPS connector setup, and a 6-pin PCIe power connector. The board also has a number of overclocking buttons found next to the memory slots.
External connectivity will be taken care of by 7.1 channel analog audio, an optical TOSLINK output, a Displayport, two HDMI ports, six USB 3.0 ports, two USB 2.0 ports, a "lightning" button, and a legacy PS/2 port.
The motherboard also sports Gigabyte's upcoming Z87 Dual-UEFI BIOS, with the high-resolution interface.