Gigabyte ships the X99-UD4 in a black box with a flap that opens to give a glimpse of the board inside. The box’s rear outlines detailed specifications of the motherboard.
There are all-black two-, standard three-, spaced three-, and four-way SLI bridges. A single CrossFire ribbon is also supplied. Gigabyte includes a 3x 8-pin to 1x 8-pin power connector that allows extra current to be fed to the CPU socket (although a PSU with 3 8-pin EPS connectors is rare).
The rear IO shield has some colour to it, and port labeling. It also features an LED to light up the rear IO area. Each of the four SATA cables is wrapped in a fine mesh that gives them a better appearance.
The mandatory documentation is supplied in addition to the driver CD and a case sticker.