Not sure where this one came from.

The 3A-066WP09 is a 9V DC, 0.67A (670mA) switching AC adapter with a 2-pin wall plug, often used for electronic equipment requiring negative center polarity. It commonly features a 5.5mm x 2.1mm barrel connector and operates on 100-240VAC input. It is frequently used for audio, musical equipment, and various 9V consumer electronics.
Key technical details for the 3A-066WP09 (specifically the Condor 3A-066WP09 or compatible):