The new Mac Mini will come in three models, with two differentiated by processor and storage capacity and the third running as an OS X server, 9to5Mac reported.
With the Mac Mini not having an upgrade since 2010, it's likely the new models with feature the latest-generation Intel Core processors, larger hard drives and faster graphics, Slash Gear said.
The Mac Mini was last updated in July 2011 with a speed jump to Intel's Sandy Bridge platform, the inclusion of Thunderbolt I/O and the removal of optical disc drives across the line.
October 23 has long been rumored as the date for the iPad mini announcement, and the new Mac Mini and MacBook Pro are likely to see the light of day at that event.
All three products are expected to be available before the holidays to take advantage of the typically busy shopping season.