CEX.IO is the first and leading commodity exchange in the Bitcoin community. Here you can buy or sell GHashes, Futures Contracts for the Bitfury ASIC chips or just trade on the increase or decrease of chip values.
We are the first exchange that offers you an opportunity to buy GHashes and avoid all the usual problems you can face when buying mining equipment, like the frequent delays in delivery, breakage losses, the need for a sufficient power supply or cooling devices, and many other things, that you will probably encounter.