Switchcraft/conxall 761Ksh17.
DC POWER PLUG, 3A, 24V, CABLE; Gender:Plug; Current Rating:3A; Pin Diameter:2.5mm; Barrel Length:12mm; Connector Mounting:Cable Mount; Contact Termination Type:Solder; Barrel Inner Diameter:2.5mm; Barrel Outer Diameter:5.5mm