IC Base or IC Socket is support for ICs for prototyping. Direct soldering in the PCB can damage the ICs and it is very difficult to replace damaged components or IC from PCD after soldering. IC base is used to neglect these kinds of damage and difficulties as the maker can directly solder the IC and it is not actual IC, so there is no problem of IC damage because of heat. IC base allows ICs or programmable chips to quickly remove from the circuit and reinsert.
It is a 40 pin IC base, so it is compatible with any 40 pins ICs.