We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular AC adapter with attached cable and storage pouch

BFKK

BFKK 1749 90W 15V 6A AC adapter

SKU CH-08RC-KKM3C MPN 1749

Charges Microsoft Surface Pro 4 Docking Station model 1749 with 90W 15V 6A output and includes a 6.2Ft power cord and storage pouch

  • TypeAC Adapter
  • Charges Microsoft Surface Pro 4 Docking Station model 1749
  • Delivers 90W at 15V 6A with 5V 1A USB port
  • Accepts 100-240V 1.2A input at 50/60Hz worldwide
  • Includes 6.2Ft power cord and storage pouch for travel
  • New 90W AC adapter listed by manufacturer 13 February 2025

What this product is

The BFKK 1749 is a 90W AC adapter that delivers 15V at 6A for the Microsoft Surface Pro 4 Docking Station model 1749. It accepts 100-240V input at 1.2A across 50/60Hz and includes a USB port rated at 5V 1A. A 6.2Ft power cord and a storage pouch are supplied in the box.

Who this suits

This adapter suits owners of a Surface Pro 4 Docking Station model 1749 who need a replacement or spare power supply. It is not for users whose docking station requires a different voltage, a higher wattage or a proprietary connector that does not match the 15V 6A specification.

Sustained-load behaviour

The unit is rated to provide a continuous 90W output at 15V 6A while operating from 100-240V mains. The 5V 1A USB port can run simultaneously without reducing the main output. No thermal limits, efficiency figures or duty-cycle data are provided by the manufacturer.

Highlights

  • Charges Microsoft Surface Pro 4 Docking Station model 1749
  • Delivers 90W at 15V 6A with 5V 1A USB port
  • Accepts 100-240V 1.2A input at 50/60Hz worldwide
  • Includes 6.2Ft power cord and storage pouch for travel
  • New 90W AC adapter listed by manufacturer 13 February 2025

Specifications

TypeAC Adapter

Questions about this item

Which docking station model must I already own for this 15V 6A adapter to work?

It is designed for the Microsoft Surface Pro 4 Docking Station with dock model 1749.

Will the 5V 1A USB port on this 90W unit charge a legacy phone while the dock is powered?

Yes, the USB port supplies 5V at 1A independently of the 15V dock output.

How can I confirm the 15V 6A output is active after connecting the 6.2Ft cord?

The dock's power indicator lights when the adapter delivers 15V 6A to model 1749.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.