Acho que já foi postado antes, mas como sempre vejo posts questionando sobre estes cartões e adapdatores PCI to miniPCI, abaixo descrição do site da própria routerboard. Notem os comentários em vermelho que eu grifei... a regra é clara!!!
IA/MP8
MikroTik RouterBOARD 18 miniPCI to PCI adapter is an advanced eight-slot adapter for 3.3v miniPCI to PCI standard sockets. The adapter is provided in PCI card form with eight integrated miniPCI slots that allow you to use eight miniPCI cards in one standard PCI socket. Should not be used with SR5 or SR2 400mW miniPCI!
IA/MP4
MikroTik RouterBOARD 14 miniPCI to PCI adapter is an advanced four-slot adapter for 3.3v miniPCI to PCI standard sockets. The adapter is provided in PCI card form with four integrated miniPCI slots that allow you to use four miniPCI cards in one standard PCI socket. Should not be used with SR5 or SR2 400mW miniPCI! (also available with bracket for four RP-TNC connectors -product code IA/MP4R)