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Black rectangular AC adapter with 4.5*3.0mm connector and USB port

BFKK

BFKK 1627 laptop battery AC adapter

SKU CH-J2AM-VKNC7 MPN 1627

A 12V 4A AC adapter with 5V USB port delivers 48W for Microsoft Surface Pro 3 Docking Station models 1627 and 1664

  • TypeAC Adapter
  • Worldwide voltage support with 100-240V input range
  • 48W output delivers 12V 4A plus 5V 1A USB port
  • UL verified compatibility for Surface Pro 3 Docking Station
  • Extended reach via 5ft DC cord and 6.2ft AC cord
  • Built-in IC chip protects against over current, overheating and overcharging

Compatible 48W adapter for Surface Pro 3 dock

This 12V 4A AC adapter with 5V 1A USB port replaces Microsoft model 1627 and 1664. It powers the Surface Pro 3 docking station and charges a phone or accessory simultaneously. The unit is new and UL verified.

Input range fixed at 100-240V 50/60Hz

Worldwide voltage compatibility is limited to the stated 100-240V 1.3A input. The barrel connector is 4.5mm by 3.0mm only. No other laptop or dock models are supported by this specific tip and voltage combination.

Extended cables reach 5ft DC and 6.2ft AC

The longer cords reduce strain on the dock port and allow flexible desk placement. Built-in IC protection guards against overcurrent, overheating and overcharging during daily use. The brick runs at 48W total output.

Highlights

  • Worldwide voltage support with 100-240V input range
  • 48W output delivers 12V 4A plus 5V 1A USB port
  • UL verified compatibility for Surface Pro 3 Docking Station
  • Extended reach via 5ft DC cord and 6.2ft AC cord
  • Built-in IC chip protects against over current, overheating and overcharging

Specifications

TypeAC Adapter

Questions about this item

Should I choose the 12 V 4 A output or the 5 V 1 A USB port for my Surface Pro 3 Docking Station?

Use the 12 V 4 A barrel connector for the docking station; the 5 V 1 A USB port is only for charging phones or small accessories.

What does the 48 W rating mean when the adapter is powering my dock?

It is the maximum continuous power the unit can deliver at 12 V, enough for the dock and attached peripherals under normal load.

The adapter accepts 100-240 V at 50/60 Hz — does that limit where I can use it?

No, the wide input range lets you plug it into any mains supply worldwide without a voltage converter.

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