we got a donation that included sixteen or so of these little modules, for converting 48VDC from Power Over Ethernet to like 5V or maybe 12v or whatever you want, it has an adjust pin. they're in the mesh area on one of the first shelves on the left, around eye level. Part number is AG9800M and they're made by Silvertel here's the datasheet: https://www.silvertel.com/images/datasheets/Ag9800M-datasheet-miniature-iso…