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Black rectangular AC adapter with detachable cable and magnetic connector for Surface devices

usbroway

usbroway 1661 90W 15V 6A laptop battery

SKU CH-NPSS-28MAT MPN 1661

90W 15V 6A AC adapter powers Microsoft Surface Pro 4 through 8 docking stations with UL, CE, FCC and RoHS certification

  • Battery TypeLithium-Ion
  • 90 W output charges your Surface Pro 4 through 8 docks quickly
  • 15 V 6 A delivery matches the original power supply specifications exactly
  • UL, CE, FCC and RoHS certifications confirm rigorous safety testing
  • V-0 flame-retardant housing with OVP, OCP and SCP protection prevents electrical damage
  • 100–240 V 50–60 Hz input works on mains power worldwide

90W 15V 6A Surface power adapter

This 90-watt AC adapter delivers 15 volts at 6 amps for Microsoft Surface Pro 4 through 8 and their docking stations. It carries UL, CE, FCC and RoHS certifications and includes over-voltage, over-current and short-circuit protection. The unit is built with V-0 grade flame-retardant materials and is tested to match or exceed OEM specifications. Condition is new and the manufacturer part number is 1661.

Check your Surface model and connector

Verify that you own a Surface Pro 4, 5, 6, 7 or 8 or the corresponding docking station before ordering. The supplier explicitly states this adapter is not for Surface Pro 3. Confirm the plug size and the 15V 6A output rating against your original power supply to ensure compatibility. Input voltage range is 100-240V at 50-60Hz for worldwide use.

Suits Surface Pro 4-8 owners needing a replacement

Ideal for users replacing a lost or faulty charger for the listed Surface models or dock stations. Buyers who need a charger for Surface Pro 3 or any other device should look at a different adapter. The 30-day free exchange and 36-month manufacturer warranty provide additional peace of mind.

Highlights

  • 90 W output charges your Surface Pro 4 through 8 docks quickly
  • 15 V 6 A delivery matches the original power supply specifications exactly
  • UL, CE, FCC and RoHS certifications confirm rigorous safety testing
  • V-0 flame-retardant housing with OVP, OCP and SCP protection prevents electrical damage
  • 100–240 V 50–60 Hz input works on mains power worldwide

Specifications

Battery TypeLithium-Ion

Questions about this item

Does the 1661 adapter ship with a mains cable or must I source one separately?

The unit is the power brick only; a standard IEC C7 or C5 mains lead for 100-240 V 50-60 Hz input is required and sold separately.

Should I choose the 1661 or the 1749 model for my Surface Pro 7 dock?

Both model numbers refer to the same 90 W 15 V 6 A specification; either will power the dock, so pick whichever is in stock.

Will the 90 W rating actually deliver 15 V at 6 A to my Surface Book under load?

Yes — the adapter is specified for a continuous 15 V 6 A output with OVP, OCP and SCP protection, matching the dock’s power requirement.

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