Can I connect two SG2210MP switches SFP ports using TL-SM5220-1M cable?

Why can the ER7212PC only manage 2 switches? This is supposed to be enterprise level equipment but most sites I service have at least 4 or 5 switches and many have considerably more. 2 switches would

Which SFP Module should I buy for my TP-Link TL-SG1218MP? I have 2 switches and a fibre line running in between them. It doesn't need to be over 1gb. SFP module compatibility is not very clear on this

Does anyone know if the AP will be happy accepting 27v? I don't want to blow up my shiny new UISP switch. Does passive PoE out, but at 27V instead of 24V on the PoE adaptor.

I'm having difficulty determining what "X" "XF" "X-M2" in the model number indicates. Can someone explain what are the differences between the TL-SG3428, TL-SG3428X, TL-SG3428X-M2, and TL-SG3428XF Tha

Hi, I am runing a Mikrotik(MT) router that connects via ether6 to the switch´s ether1. In the MT there a 2 VLANS created: -BASE-VLAN (pvid=99) > the admin client is here with ip 192.168.0.11 -TEST-VLA