A:Answer Hi Jordan. There are upgrades you can make after purchase. Here is a link to the upgrading and service guide:
http://h10032.www1.hp.com/ctg/Manual/c06425327
You can upgrade the RAM, the SSD, add a HDD, and upgrade the processor.
Here is a link to the datasheet. If you click on the motherboard link you will find upgrade information.
I see that this Desktop PC has the L81008-800 - 180W power supply installed. This chassis can also use the L64961-800 - 310W power supply, and the connectors should be the same. I hope this helps you.