Dell 450-18558 is a 240 W AC adapter with a 19.5 V output, intended to power compatible Dell equipment. The compatibility reference listed for this model is 0FWCRC, which helps identify it when selecting a replacement.
It has a 3-pin connector with a 7.4 mm tip. The listing specifies a C14 power cord, but the cord is not included, so check the required cord separately when planning the power setup.
The stated output rating and connector format describe this adapter for equipment matched to 0FWCRC. They do not establish compatibility with other models.