This is a factory PS2 Charger that outputs both 3V 70mA for the 3V engines (Molex connector) and the round 10.5V 11mA plug for the 5V engines. As far as I can tell it's a normal wall wart, but with the dual voltages maybe better to keep on hand than separate chargers for your different PS2 Batteries.
In original factory blister pack, but I did open it up to confirm the connectors were the two types since the packaging had them hidden inside the nest of wires.
$5.00 plus actual shipping.
Edit: SOLD