Current network is cable modem, wifi router w 5 ports, 8 port switch, another 8 port switch, and a 5 port hub supporting all the devices for one user. I'm thinking next switch needs to be a 16 port GBE with at least a couple faster ports for expected new PCs. Two main NAS units both have dual GBe and support bonding the two NICs, which uses up 4 ports alone, and seems like its more common to find bonding in 16 port switches. No plans to buy until the two main PC users get upgrades, not likely added NICs, but next gen motherboards with faster ethernet.