Its the apex auto feeder\
Pros: can program it with the apex so can feed whenever, can also program many different times etc......., also has a nice design where the canister pushes out to drop pellets then stores away (a petco one i had would always get some moisture in the actual chamber. Also no batteries
Cons: for a large system you would probably have to fill the container weekly if not more.
There's some great videos of it on youtube, but using it in conjunction with the apex is a homerun IMO


