A:AnswerI don't know if the psu has the correct connectors for that motherboard but if you really do want this psu it will work if you get the correct connectors.
Short Answer: Do some reasearch on the psu connectors and your motherboard connectors, Amazon may have some.
A:AnswerI don’t believe this unit will fit your case. Google replacement power supply for Dell Optiplex . Take out your power supply and look for the model number tag to search.
A:AnswerIt depends on your model of 8200 - if it's the CMT (Convertible Minitower), it should almost definitely fit; if it's the SFF (Small Form Factor), it may *just* fit, if it's the USDT (Ultra-Slim Desktop), no.