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Black rectangular power brick with 10 ft cable

WAWEIS

WAWEIS AC Adapter 19.5V 12.3A 240W Dell Precision 17 7720

SKU CH-87B8-Y2BXM

A 240-watt replacement charger for Dell Precision 17 7720 laptops with a 10-foot cord and safety protections

  • 100–240 V worldwide input for global use
  • 10 ft total cord length gives flexible placement
  • 240 W output at 19.5 V 12.3 A matches original specs
  • FCC CE RoHS certified with over-current over-voltage short-circuit protection
  • 100 % compatible with Dell Precision 17 7720 notebook

240 W AC adapter for Dell Precision 7720

This 240 W AC adapter delivers 19.5 V at 12.3 A to power the Dell Precision 17 7720. It accepts worldwide input voltage from 100 to 240 VAC at 50 or 60 Hz. The unit includes a 10 ft power cord for flexible placement. It is supplied new and intended as a direct replacement charger.

Check connector and voltage before ordering

Verify that the original charger for your Precision 7720 specifies 19.5 V and 12.3 A output. Confirm the barrel connector size matches the laptop's DC-in jack. Ensure the mains plug suits your local socket or that a suitable adapter is available. The adapter supports 100 to 240 VAC input for international use.

Protections maintain output during extended use

Over-current, over-voltage, short-circuit and total-power protection circuits guard the adapter and laptop during continuous operation. Over-heating protection with a smart chip and anti-interference isolation materials help sustain stable output over long sessions. The unit is certified to FCC, CE and RoHS standards.

How it compares

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

Price $59.99
Pricier than about 89% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the 10 ft cable reach a desk socket without an extension?

The adapter ships with a 10 ft power cord that plugs into any 100-240 VAC 50/60 Hz mains outlet, so a standard desk or floor socket is usually within reach.

Should I pick this 19.5 V 12.3 A unit for my Precision 17 7720?

Yes — the 19.5 V 12.3 A rating delivers the 240 W the Precision 17 7720 expects, and the connector matches the original barrel jack.

Will the 240 W rating hold up during heavy GPU loads?

The brick is rated for a continuous 240 W output with over-current, over-voltage, short-circuit and over-temperature protection, so it sustains full power under load.

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