Generally, a device for connecting two different types of electronic hardware without losing functionality.
In networking, a cable adapter has two different connectors that provide data transmission back and forth. Cable adapters come in many varieties, and they are specified by the two connector types and whether the connectors are male or female (for example, DB9 female to DB25 male adapter).
Cable adapters are a necessary part of the network administrator’s toolkit because of the large number of connectivity options provided by networking equipment vendors.
The term «adapter» is also used in a number of different contexts in networking, including the following examples: