Synology PSU 500W PSU 500W-RP Module_2, AC input voltage 100 - 240 V, Compatible products RS18016xs+, RXD1215sas, RS2416RP+, RX1217RP, RX1216sas, Server, Grey. Synology is a dedicated Network Attached Storage (NAS) provider. From small-and-medium business to individual users, Synology products offer a full range of choices to fulfill different needs.