Has Original box, original manual and some of the additional decals and wires.

DIMM.2 Module that came with it is included

Fan/RGB controller that came with it is included.

A wi-fi antenna is included(not the original).

32gigs(16x2) of DDR4 4000 G.SkILL CAS16 RAM included

No physical issues with it, I cannot get some of the blue thermal paste off from near the socket, I tried for hours, sorry.

See the spec list off the ASUS website: https://rog.asus.com/us/motherboards/rog-crosshair/rog-crosshair-viii-extreme-model/spec/