This adapter has dual pin, one is DC pin (dia-6mm) another is Sony pin (dia-4mm), It has wide input range from 90V to 270V, And has fixed output 12V 1A max. This mainly used in Set top box, Router, or any other device which require 12v. Smart Replacement Gadget Power Supply for LED, SMD, LED Strip, RGB LED Strip Ideal for Routers or Modems or Mobile Phones or Mp3 players or POS Machines etc. Best for Routers, Wi-Fi Routers security or spy camera receiver and some advanced cameras CCTV, Gadgets, Portable Players, Set Top Boxes, best for Toys etc. Specification: Operating Voltage: 12V Operating Current: 1A Type: Dual Pin Pin Type: DC Pin, Sony Pin Features: Ensures adequate power supply to get accurate reading Made of high quality material to ensure power supply is normal Comes with Double Pin (dual) which works with all major brand of Digtal BP Monitors. Package Included: 1 x Adapter 12V 1Amp