# Mojaloop Hub Legacy Components - PI7

The following component diagram shows the break-down of the Mojaloop services and its micro-service architecture for pre PI7:

![Mojaloop Architecture Overview PI7](https://960632945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LXhOIEoqtInj89WmQ_Q%2Fuploads%2Fgit-blob-2fedecbc19f83281e91fcfce38c797513a701c9f%2FArch-Mojaloop-overview-PI7.svg?alt=media)

*Note: Colour-grading indicates the relationship between data-store, and message-streaming / adapter-interconnects. E.g. `Central-Services` utilise `MySQL` as a Data-store, and leverage on `Kafka` for Messaging*
