Spec me a 4k Corsair case based SFF

[Voltage]

Budget is £2k inc vat

Just a base unit, don't need any peripherals or monitor

Must haves are Corsair 860i psu and a Corsair Hydro cooler.

Don't need optical drive.

 

[LePhuronn]

Unless you already have that PSU you don't need that much power for a single GPU rig.

 

[Ronald]

ITX or Not So Small Form Factor (mATX)?

ITX and 4K gaming is a bit of an Illusion for now as no single card really properly drives 4K in recent titles.

If you already have the 860i, great, if not, there are options more highly regarded for less by forum users: http://forums.overclockers.co.uk/showthread.php?t=18642494