Certification : CEModel Number : 5V 12V 1A 2A 3A 0.5AOutput Interface : 5.5mm*2.1mmUsage : SwitchingOutput Type : DCis_customized : YesConnection : Plug InIf you want to buy other specifications, please click this link:https://www.aliexpress.com/item/4000443793258.html?spm=2114.12010608.0.0.20e86587eMdAzg* 100% Brand new 100V - 240V AC to DC Power Adapter supply* Input: 100V~240V , 50~60Hz* Plug Specifications: EU Plug* The adapters Connector: inside positive (+) . outside negative (-) Specification: (1) 5V 1A 5.5mm*2.1mm * Output: DC 5V (+/-5%) 1A / 1000mA * DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1mm5V1A(2) 5V 2A 5.5mm*2.1mm* Output: DC 5V (+/-5%) 2A / 2000mA * DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1mm5V2A(3)*Output: 5V3A*DC Plug Size(Outer Diameter & Inner Diameter): Micro USB5V3A(4) 12 V 0.5A 5.5mm*2.1MM* Output: DC 12V (+/-5%) 0.5A / 500mA * DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1mm12V0.5A(5) 12 V 1A 5.5mm*2.5MM* Output: DC 12V (+/-5%) 1A / 1000mA * DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1-2.5mm12V1A(6) 12 V (+/-5%) 2A 5.5mm*2.5MM* Output: DC 12V 2A / 2000mA 24W* DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1-2.5mm12V2A