noun
asynchronous communications adapter
A hardware component that enables asynchronous serial communication between a computer and external devices. Technical computing term.
この非同期通信アダプタはRS-232C規格に対応している。
This asynchronous communications adapter supports the RS-232C standard.
Compound of 非同期 (asynchronous), 通信 (communication), and アダプタ (adapter). A straightforward technical term with no special historical derivation.