Biostar has introduced a cryptocurrency motherboard, the BTC-24GH, with 64 ASICs (Application-Specific Integrated Circuit) on-board which offer 24GH/s performance that's equivalent to more than 30 ATI 7970 graphic cards.
In the Bitcoin world, a "mining rig" is a computer system used for mining bitcoins or other cryptocurrencies. It can be built specifically for mining or it could be your everyday computer for gaming and surfing, and is used to mine only on a part-time basis.
With the increasing price of Bitcoins, GPU mining can theoretically be profitable. All you require is a system that does massive amounts of mathematical calculations. Up till now, the best way to do this is the GPUs in graphics cards. Now, ASICs can solve mathematical hash functions efficiently. Furthermore, they only utilize low power.