On the website http://routerboard.com/ I read that only R5H minipci card has an integrated surge protector but one of our MT distributor on your website:
Card 2,4 GHz R2N Mikrotik mini PCI, 320mW, 300 Mbps, Integrated surge protector
Card 5 GHz R52N Mikrotik mini PCI, 320mW, 2.4 & 5 GHz, 300 Mbps, Integrated surge protector
Card 5 GHz R5H Mikrotik mini PCI, 320mW, Integrated surge protector
Is an misinformation?
Cetalfio