The tp-link power supply module psm550-ac is an ac-input and dc-output power supply module. It can convert the input voltage to 12 volts with a maximum output power of 550 watts. The power supply module is fully hot-swappable. Helping to ensure no system interruption during installation or replacement. The tp-link power supply module is applicable to multiple omada and omada pro switch models. Such as sx6632yf. S7500-26xf6y.