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Black rectangular laptop power brick with detachable cord

WAWEIS

WAWEIS 20V 14A 280W AC Adapter for ROG Strix G731GW i9-9880H RTX2070 ADP-280BB B

SKU CH-KAFG-Q5HZG

A 20V 14A 280W replacement AC adapter with a 10 ft cord and FCC, CE, RoHS certifications for the ROG Strix G731GW

  • World-wide 100-240 VAC input works anywhere
  • 20 V 14 A 280 W output matches original specs
  • 10 ft total cord length gives flexible placement
  • FCC CE RoHS certified with multiple safety protections
  • 100 % new components tested to strict quality standards

Replacement Adapter for ROG Strix G731GW

This 20V 14A 280W AC adapter replaces the original ADP-280BB B unit for the ROG Strix G731GW laptop with i9-9880H and RTX2070 graphics. It delivers the exact voltage and current the system expects so the machine charges and runs without compromise. The package includes a 10 ft power cord for flexible outlet placement.

Thermal and Safety Performance

Built-in protections cover over current, over voltage, short circuit and total power events while a smart chip monitors temperature to prevent overheating. The unit operates on worldwide 100-240VAC 50/60Hz input so it works on any mains supply without a separate converter. High-quality wires and isolation materials reduce electrical interference during normal charging sessions.

Upgrade From a Failed or Lost Original Charger

This adapter is a direct substitute when the factory supply is damaged, lost or no longer holds a stable output. It restores full 280W charging capability so the laptop can sustain high CPU and GPU loads without throttling due to insufficient power. Buyers who need a second charger for travel or a dock should verify the connector matches before purchasing.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $92.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 20V 14A adapter to my ROG Strix G731GW, and what step is often missed?

Plug the barrel connector firmly into the laptop's DC-in jack until it seats, then connect the IEC C7 cord to the brick and wall outlet; the step often missed is fully seating the barrel plug, which prevents charging.

What maintenance or replacement will this 280W charger need over time?

The 10 ft power cord and IEC C7 cable may wear at strain points; replace the cord if insulation frays or the connector loosens, while the brick itself has no user-serviceable parts.

What limit appears first when this adapter runs continuously at full 280W load?

Sustained 280W output causes the brick's internal temperature to rise until its over-temperature protection engages, temporarily shutting down output until it cools.

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