The SDIP-12-240 Gigabit Adapter is a non-isolated DC/DC converter that steps down the voltage. The device allows you to change the PoE 802.3 af or PoE PASSIVE 35-56V standard to the PoE PASSIVE 24V standard. The basic application of the adapter is to power AP WiFi access devices that require a PoE supply voltage of 24V. Gigabit bandwidth allows for full use of the wireless transmission speed.