AC-DC Linear Power Supply 9V DC @ 1000mA; 1.5 x 5.5mm NEGATIVE center polarity
Part #: CAS-91A
Input: 120VAC
Output: 9VDC @ 1000mA
Plug: 1.5 x 5.5mm (right angle) NEGATIVE
Compatible with most Casio keyboards (AD-5), including CTK, LD and LK models. Plug is RIGHT ANGLE.