Wall Socket AC DC Power Adapter Supply Charger for MS Microsoft Surface Pro 2 US Plug Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver mode to prevent overcharging and short circuit. Input: 100~240V -1A 50/60Hz Max; Output: 12v ,45W.3.6A; Cable length: 2.5M Compatible with:Microsoft Surface 10.6 Windows 8 Pro Package:1 x ac charger for Microsoft Surface 10.6 Windows 8 Pro