NETGEAR APS350W 350W Modular Power Supply Unit

M4350 switches take their power from a module rather than a fixed internal supply, and the APS350W is the smallest of them: up to 350W at 110/220V AC through a standard C14 inlet. On a switch that is not running a full load of PoE budget, one of these is the whole power story; on a switch that matters, a second one turned into the spare bay is what keeps an AV network alive through a failed supply or a dropped circuit.

It fits the M4350-24G4XF, M4350-48G4XF, M4350-44M4X4V, M4350-24X4V and M4350-24F4V. Because the supply is a module, sizing it is a separate decision from choosing the switch, so a room that grows into more powered endpoints later gets a bigger PSU rather than a new chassis. The box ships with the power supply unit and its installation guide.