Application-Specific Integrated Circuit (ASIC) is a device designed specifically for cryptocurrency mining. Most ASIC hardware is designed to mine specific cryptocurrencies. So, if an ASIC is called “ASIC Bitcoin miner”, it means it can only be used to mine Bitcoin.
ASIC mining devices are expensive to produce and need sophisticated engineering. ASIC is more expensive than a typical computer yet performs more efficiently.
Dedicated directories such as ASIC Miner Value provide real-time of the most efficient ASIC. They also show the break-even point for each model of ASIC.