Security-01 DC 9V 0.5A Power Supply Adapter, Plug 5.5mm x 2.1mm, Center Negative

Security-01 DC 9V 0.5A Power Supply Adapter, Plug 5.5mm x 2.1mm, Center Negative Description

Security-01 DC 9V 0.5A Power Supply Adapter, Plug 5.5mm x 2.1mm, Center Negative Input voltage: AC 100-240V 50/60 Hz, Output: DC 9V 0.5A (500mA), Connector Size: 5.5mm x 2.1mm, Cable length: 2m Power supply polarity: Center or Tip is negative(-), Sleeve is positive (+), PLEASE NOTE THAT this power supply only works with centain devices with center negative, refer to the following list Works with Effects Pedals, Drum, DJ controller, Piano keyboards, Label makers and other equipment with power ports of negative-tip (Center Negative) DOES NOT Fit: Arduino UNO R3, Arduino Mega 2560 / Nixie tube clock / Elegoo, IEIK UNO R3 / MEGA 2560 / Schwinn elliptical machine, A10 A15 A20 A25 A40 103 120 130 213 220 240 430, Schwinn bike, Lansinoh smartpump and Lansinoh SignaturePro Note: A correct polarity is critical, a center positive device will not run on this adaptor