Asynchronous replication is a data management technique used to copy data from one location to another without requiring both locations to be in sync at the same time. In this process, changes made to the primary data source are sent to a secondary location, but there may be a delay before the secondary location receives and applies those changes. This allows for greater flexibility and can reduce the impact on system performance. This method is commonly used in database management and disaster recovery strategies. While it offers advantages like reduced latency and lower bandwidth usage, it also means that the secondary location may not always have the most current data, which can be a consideration for certain applications.