The Dell 450-BFFL power adapter, also identified by manufacturer part number 2NFMW, supplies compatible devices through a USB-C connection. Its 65 W rating identifies this specific adapter, which is useful when choosing a replacement or additional power source for a device that accepts USB-C power.
As an external power adapter, it can serve setups that draw power through USB-C. The connector type distinguishes this model from Dell adapters with other interfaces, so check that the device accepts USB-C power before choosing it.
Use it to power a compatible device when an adapter with these specifications is needed.