Will have about 80 miners to start eventually going to 500. Was thinking of getting used 3750s. trying to determine which one to get.. there are so many different model types and software. Anyone gone this route? I am thinking the 3750-48PS-S like below with a couple of stackwise cables. Pretty sure i have no reason to have POE but they seem to be cheapest model, shouldn't need the G version 10/100 should be fine, only need layer 2. Anything I am overlooking?

https://www.ebay.com/itm/Cisco-WS-C3750-48PS-S-48-Port-4-SFP-IP-Base-Image-Catalyst-PoE-Switch-Tested/231366915737?epid=74086481&hash=item35de8af699:g:zBAAAOSwEppURWwY

So for example the Asus RT-AC86U router... it has built in openvpn. Does that mean I just need to configure the router and put a openvpn client on the pc I want to remote manage? No need for separate service like ipvanish?

Some friends and I are getting ready to setup our mining farm and I had a few questions..

We are starting at about 50-100 S9s and will eventually ramp up to 500. Currently trying to determine the VPN. We will mist likely get a bunch of used 48 port Cisco 3750g switches and I wanted to be able to remotely manage the miners. Originally I was thinking of just putting a PC locally and using TV or chrome Remote Desktop to control but thought a dedicated VPN might be better more reliable solution. Unfortunately I don’t know a lot about VPNs and was wondering if Any of you used something similar to a D-Link dsr 250n? Do I need a separate service like express vpn or ipvanish or is that all built into the D-Link VPN router? Any better recommendations?