Depending on the configuration you order from the Apple Store, your Mac mini (Late 2014) comes with one of these configurations of LPDDR3 SDRAM installed into two channels integrated to the main logic board:
- 4 GB
- 8 GB
- 16 GB
The memory for Mac mini (Late 2014) computers isn't user accessible and is integrated into the main logic board. You can configure your computer's memory at the time of purchase.