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Black 45W USB-C power adapter with detachable cable

NShi

NShi 934739-850 45W USB-C ac adapter for HP Chromebook ProBook

SKU CH-ZDS9-PX7AV

45W USB-C power adapter with multi-voltage output for HP Chromebook and ProBook models

  • ColorBlack
  • TypeAC Adapter
  • CompatibilityHP CHROMEBOOK 11 G6 Education Edition, 11A G6, 850 G4, PROBO
  • AC Adapter Voltage5V 2A, 12V 2A, 14.5V 2A, 15V 3A, 20V 2.25A
  • Charges multiple HP models with one adapter
  • 45W USB-C output powers devices efficiently
  • Supports 5V, 12V, 15V, 20V for flexible charging
  • Certified UL, CE, FCC, RoHS for safety
  • Replaces OEM part 934739-850 directly

Replacement 45W USB-C Adapter

This new NShi 934739-850 adapter replaces the original HP charger for Chromebook 11 G6 Education Edition, 11A G6, 850 G4, ProBook 455 G6, 455r G6 and ProBook x360 11 G4. It delivers 45W over USB-C for reliable daily charging.

Critical Voltage Profile

The adapter must supply the exact multi-voltage profile of 5V 2A, 12V 2A, 14.5V 2A, 15V 3A and 20V 2.25A to negotiate power correctly with the listed HP models. A charger missing any of these steps will not charge or will trigger a safety shutdown.

Simple Plug-In Install

Connect the USB-C plug to the laptop and the AC cord to mains power; no drivers or configuration are required. The most common issue is using a cable or dock that does not pass the full 20V 2.25A negotiation, so verify the complete charge path if the battery does not gain charge.

Highlights

  • Charges multiple HP models with one adapter
  • 45W USB-C output powers devices efficiently
  • Supports 5V, 12V, 15V, 20V for flexible charging
  • Certified UL, CE, FCC, RoHS for safety
  • Replaces OEM part 934739-850 directly

Specifications

Model934739-850
ColorBlack
TypeAC Adapter
CompatibilityHP CHROMEBOOK 11 G6 Education Edition, 11A G6, 850 G4, PROBOOK 455 G6, 455r G6, PROBOOK x360 11 G4
AC Adapter Voltage5V 2A, 12V 2A, 14.5V 2A, 15V 3A, 20V 2.25A

Questions about this item

What does the 45 W rating mean when the adapter is plugged into my laptop?

The 45 W rating is the maximum power the adapter can deliver; your HP Chromebook 11 G6 or ProBook x360 11 G4 will draw only the current it needs up to that limit.

How does the USB-C interface limit what this adapter can do?

The USB-C connector carries USB Power Delivery profiles of 5 V 2 A, 12 V 2 A, 14.5 V 2 A, 15 V 3 A and 20 V 2.25 A, so the adapter negotiates the highest voltage the laptop supports.

Will the 934739-850 fit the barrel port on my ProBook 455 G6?

This model uses a USB-C plug, not a barrel connector, so it only fits devices that charge through USB-C such as the listed Chromebook 11 G6 and ProBook x360 11 G4.

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