blue iris machine recommendation

"Lenovo S510 10KY002BUS Small Form Factor Desktop Computer, Intel Core i5-6400 2.7GHz, 4GB RAM, 500GB HDD, Windows 10 Professional" $340
What are your opinions on this machine to run 6 camera's (1) 2mp, (3) 4mp, (1) 3mp, and (1) 5mp all running 15fps. I have an spare stick of ram and a WD purple to put in. Or wait for a dell outlet one to pop up?
Lenovo S510

I bet the first question will be, What software you using to run the cameras since I didn't see any mention of it. I run 6 cameras on BI with 5 at 10fps 1080p and 6th at 15fps and it's only a 4100 AMD quad 4 and runs at 42% cpu usage. You don't want BI to turn the red cpu usage % on for sure. Other then that, someone else will have to give you more details on what you are asking.