INPUT: 100-240V ~ 1.3A 50/60Hz (for worldwide use).
Output: 12V-4A & 5V-1A USB Port.
Power: 48W.
Connector size: 4.5 * 3.0 mm, provide more stable and stronger power than the original charger.
Compatible for: Microsoft Surface Pro 3 Docking Station. This power supply has been tested through UL verification.
Longer Extended Cord: with 5ft DC cord + 6.2 ft AC Cord for longer distance use..
IC Chip Built-in For Safety: The unit has IC chip built-in to protect your devices so you dont need to worry about over current, overheating, and overcharging.