This feature is a Standard Image (SI) to Enhanced Image (EI) Upgrade License for the DGS-3630-52PC Managed Switch. Upgrading a switch with this software adds additional features This license works only with DGS-3630-52PC and cannot be activated on any other model. Please make sure you are buying the correct license for your model. Please consult the DGS-3630 product page and datasheet for more details.