The Optiplex is required to connect to three networks so we need to add
two additional Network Interface Cards.

The machine can support only 8GB maximum RAM from
http://www.dell.com/downloads/global...ok.pdf#page=11

It would be running Windows 10 Professional 64 bit.

1. It has PCI slots vacant so
would getting two network cards at
http://accessories.us.dell.com/sna/p...04306684114868
work?

2. Or, would getting something like
https://www.amazon.com/gp/product/B00965J4TS/ be better?
Or, is some other brand better for dual NIC?

Does anything else need to be changed when the motherboard is supporting
3 NICs?

Any suggestions would be helpful.