This is a Stancor 115v 50/60Hz 12v @ 1.0A Transformer P/N SW-524. With a PCB mounting style. The transformer has a primary voltage rating of 115V and a secondary voltage rating of 12V, with an operating frequency of 60Hz. The unit is manufactured in Taiwan. Has 2 secondary 12V 0.5A taps.NOS in original box & includes data sheet.