The DrayTek VigorSwitch P2500 is a PoE+ version of the G2500
It has a deeper draught as it contains more electronics to cope with the PoE+ and so is designed for server cabinets in the most part.
The system allows for the connection of DrayTek WAP APs which can then be powered by PoE+, configured for VLANs and traffic bandwidth control, all from the VigorSwitch or from a DrayTek Vigor Router such as the 2962 or the 3900. There are 44 PoE+ ports.
The system also has extra SFP ports for LAG connections to other switches and for fibre connections over greater distances.