The InLine power cable with product code 16654H is generally compatible with devices that use a standard power cable, but to be certain of its compatibility with the HP ENVY Inspire 7900e printer, you should check the printer's specifications.

The HP ENVY Inspire 7900e printer uses a standard power cable, but it is important to check that the InLine cable has the same characteristics (for example, the same voltage and power) as the original cable supplied with the printer.

In short, if the InLine cable has the same specifications as the original printer cable, it should be compatible. If not, it is recommended that you use the original cable or a cable specifically recommended by HP.