MacBook [Pro] or iMac – what number of shows, what decision/frequency?

^{This is probably not the one accessible useful resource on this matter, however it’s a complete & dependable one…}

EveryMac, because the identify suggests, has data on each Mac mannequin ever made [also iPhones, iPads, iPods], together with however not restricted to the variety of exterior shows supported & their most specification.

If you’re not completely sure which mannequin you could have from  Menu > About this Mac, then they’ve a search engine which might establish from many information varieties, serial quantity, half quantity and so on, the

Final Mac Lookup

Lookup Macs, iPods, iPhones and iPads by Apple Order Quantity, Mannequin Quantity, EMC Quantity, Mannequin Identifier, Serial Quantity and Intel processor quantity.

That is an instance of the info they supply for the present 2018 Core i9 15″

^{I’ve no affiliation to EveryMac, their companions, advertisers or sponsors.}