Specifications: Product Name: 3-12V Adjustable Voltage Supply Model: 30W multi-function power adapter Rated power: 30W Input voltage: AC100-240V 0.25A 50/60Hz Output voltage: 3V/4.5V/5V/6V/7.5V/9V/12V USB output: 5.0V2.1A Power cord length: 1.2M DC head output: 2.5*0.7mm 3.0*1.1mm 3.5*1.35mm 4.0*1.7mm 5.5*2.1mm 5.5*2.5mm Material: ABS+PC+Fireproofing marterial AC plug: US, EU, UK, AU Charging protection: overcharge protection, overcurrent protection, temperature protection, short circuit protection Size: 10CM*4.5CM*3CM Weight: 0.15KG The package includes: 1 * power adapter "Note: Pictures may be displayed differently due to different shooting angles and lights. Manual measurement will have errors, ranging from 1-2cm. Please understand.