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STARWELL

STARWELL 65W AC adapter for Microsoft Surface Pro 3-8 Go Book Laptop 15V 4A USB 2.0

SKU CH-K2MA-A609D

A 65 W AC adapter with 15 V 4 A output and a USB 2.0 port, compatible with Microsoft Surface Pro 3 through 8, Surface Go, Surface Book and Surface Laptop models, and certified to UL, CE.

  • TypeAC Adapters
  • 65W output powers Surface Pro 3-8 and Book models
  • 15V 4A delivery also supports 44W and 36W devices
  • USB 2.0 port adds 5W for charging accessories
  • Synchronous Rectifier IC provides under-voltage and over-temperature protection
  • UL CE FCC RoHS tested with 100-240V universal input

Compatible Microsoft Surface models

This 65 W AC adapter fits Microsoft Surface Pro 3 through 8, Surface Go, Surface Book 1 and 2, and Surface Laptop 1, 2 and 3. It also covers part numbers 1625, 1631, 1703, 1706, 1724, 1735, 1736, 1769, 1782, 1796, 1800 and 1873. The USB 2.0 port adds 5 W for charging a phone or accessory.

Replaces 44 W and 36 W units

The adapter delivers 15 V at 4 A for 65 W, yet it also works with devices that originally shipped with 15 V 2.58 A 44 W or 12 V 2.58 A 36 W bricks. Upgrading is worthwhile when the original charger is lost, damaged or no longer holds a stable voltage under load. Buyers who need more than 65 W or a different connector type cannot use this unit.

Simple plug-in installation

Connect the barrel tip to the Surface charging port and the IEC C7 mains lead to any 100–240 V 50/60 Hz outlet; no drivers or configuration are required. The built-in synchronous-rectifier controller provides under-voltage and over-temperature protection. A common issue is debris inside the magnetic connector preventing full seating, so inspect both sides before plugging in.

Highlights

  • 65W output powers Surface Pro 3-8 and Book models
  • 15V 4A delivery also supports 44W and 36W devices
  • USB 2.0 port adds 5W for charging accessories
  • Synchronous Rectifier IC provides under-voltage and over-temperature protection
  • UL CE FCC RoHS tested with 100-240V universal input

Specifications

TypeAC Adapters

Questions about this item

Does the 65W adapter fit the magnetic charging port on a Surface Pro 7?

Yes, the connector matches the proprietary Surface port used by Pro 3 through Pro 8, Go and Book models listed in the compatibility list.

What is the correct order to connect the 15V 4A adapter so the LED lights?

Plug the AC cord into the 100-240V wall outlet first, then attach the magnetic tip to the device; reversing the order can prevent the LED from illuminating.

When should the 65W power supply be replaced if the USB 2.0 port stops charging?

Replace the unit if the USB 2.0 port no longer delivers 5W while the main 15V 4A output still works, as the internal SR controller cannot be serviced.

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