It has an integrated PSU.However my big concerns are network security - and this is a managed device with poor security implementations so its going back

However, I am noticing the same fatal security issues with the VLAN function other users have found

You'll get less WiFi interference, and better security if devices aren't WiFi connected with the default password for any drive-by hacker to steal, or neighbor to leach off your internet.

So, you can ignore your system security to configure the switches, or you can use them like any other dumb switch.....

My house is completely wired for Ethernet and I needed plenty of ports to support all the computers, DVD players, smart TV’s and

My internet download speed is about 600mb/s, and this switch will not exceed 100mbs.

I didn't have time to chat at the moment, so I used their e-mail support option.

-R-O problems with these systems

I decided tocall the T-Link support line and they suggested trying to connect the cables in various other ways

Worked fine with gigabit Ethernet devices, but not work with 100base-T devices like Steam Link or Amazon’s Fire TV 4K USB Ethernet adapter