Dell DELL-14P3N is a 90 W AC adapter for powering a laptop through USB-C. It is the European-market version, with the full product code shown to help identify this specific model among laptop power supplies.
Its 90 W rated output is intended for laptops that call for this power level and a USB-C power connection. The adapter converts AC input for the computer, and the USB-C connection links it to the laptop. The product configuration specifies a 1 meter power cord, a useful detail when choosing where to place the adapter.
Use it as an external power source at a regular desk or keep it at another work location. Check that the laptop supports USB-C power and is suitable for a 90 W adapter before choosing this model; the European-market designation and cord length help distinguish this version.