This is a 12V fixed-voltage MyVolts-branded power supply designed to meet exactly the power specification of your Casio PX-S1000, PX-S3000 Keyboard.Specifications:- Output voltage is 12V- Max. output amperage is correct for your device- Output tip is the right size and specification - we've tested it thoroughly- 2 pin plug for use with US (Type A) wall sockets- Input voltage is 100-120V AC, 50/60HzIn addition, this -branded replacement power supply for Casio PX-S1000, PX-S3000 Keyboard is:- Compliant with all safety standards, and features overvoltage, overcurrent and short-circuit protection to protect your device from damage- Energy Star level 6 approved, guaranteeing more efficient delivery of power to your devices, at less cost to you- RoHS and CE-certified- Covered by a 2 years' warranty: if the power adaptor fails within 2 years from purchase, we'll replace it, no worries.