In addition to the G1.Assassin 3, Gigabyte showed off its first motherboards with Thunderbolt 2.0 connectors. Armed with 20 Gb/s of bandwidth, Thunderbolt 2.0 gives you enough bandwidth to drive high-resolution displays (beyond WQHD), and storage arrays with SSDs. Among these motherboards are the Z87X-UD7 TH. Gigabyte distinguished the "UD7" brand extension from "OC," which marks products that prioritize performance-enhancing components over connectivity, while the UD7 leads the company's mainline Z87X pack with top-grade connectivity, and electricals not too far behind the Z87X-OC.

The Z87X-UD7 TH is built in the standard ATX form-factor. It draws power from a combination of 24-pin ATX, 8-pin EPS, an optional 4-pin ATX, and an optional SATA power input. It uses a 16-phase VRM to power the CPU, which uses high-grade PowIRstage driver-MOSFETs. The VRM cooler is a combination of an active air-cooled heatsink, with a coolant channel that lets you make it part of your liquid cooling loop. This cooler shares some of its heat with the heatsink covering the PLX PEX8747 bridge chip, and the PCH, which also features a fan-heatsink. The board features five PCI-Express 3.0 x16 slots, of which three are gen 3.0 x16 capable, and four gen 3.0 x8 capable. A mechanism lets you bypass the bridge chip, and connect a single graphics card directly to the CPU. Two PCI-Express 2.0 x1 slots complete the expansion area.