[ MY UPGRADES ] locate your apple product to view available OWC upgrade/updates
Your model lists an assortment of various parts from above ~ using your supplied info:
Upgrades for Mac mini (2.40 GHz, Mid 2010) - eshop.macsales.com/ upgrade result.
To get the largest yet most affordable capacity drive replacement for main HDD bay
is usually advised. Though your machine could use the dual-drive kit, my preference
to keep serviceable optical drive (because I've no superdrive) is an option to consider.
The 'owc mercury SSD' has things going for it. Also for older PPC macs with ATA/IDE,
an upgrade path with Legacy version is quite suitable to gain performance with those.
In any event...
Good luck & happy trails! 🙂