1, 350W Swithching Power Supply 2, 110/220V input, OMKQN 3, Installed with ... detailed info for my OMKQN 110V/220V Input 350W Single Output Switching Power Supply S-350 series. Hope you like it.First, ... them. If you are confused on choosing a right power supply, please don't hesitate to contact us.Installation: ... you have no ideas on choosing the right power supply, please do not hesitate to contact us.