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Black rectangular power brick with 7.4x5.0mm barrel connector and detachable power cord

Graviton

Graviton PA-1231-16 19.5V 11.8A 230W AC Adapter

SKU CH-ZP4P-2Y85K

A 230W laptop power supply delivering 19.5V at 11.8A with a 7.4×5.0mm centre-pin connector and included power cord

  • Delivers 230 W for demanding laptops
  • 5 V 11.8 A output matches original spec
  • 100–240 V 50–60 Hz input works worldwide
  • 4×5.0 mm centre-pin connector fits compatible ports
  • Includes EU, US, UK and AU power cords

Power Delivery Specifications

This 230-watt AC adapter delivers a steady 19.5 volts at 11.8 amps to compatible laptops. It accepts a universal 100 to 240-volt input at 50 or 60 hertz, making it suitable for worldwide travel. The barrel connector measures 7.4 by 5.0 millimetres with a centre pin. A matching power cord is included in the package.

Sustained Load Behaviour

The unit is rated for continuous 230-watt output, allowing it to power demanding laptops during extended work sessions without throttling. CE certification indicates compliance with European safety and electromagnetic compatibility standards. It replaces the Liteon PA-1231-16 part number directly, ensuring correct voltage regulation under constant demand.

Thermal and Power Characteristics

The adapter operates from standard mains frequencies of 50 to 60 hertz without requiring manual voltage selection. Its sealed enclosure dissipates heat passively during normal operation, avoiding audible fan noise. The 19.5-volt output remains stable across the full 100 to 240-volt input range, protecting connected hardware from voltage fluctuations.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $34.99
Pricier than about 66% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 230 W 19.5 V 11.8 A adapter produce during all-day use?

The unit is a sealed brick with no fan, so it runs silently; warmth is normal at full 230 W load.

Which cables or connectors must I already have to use this PA-1231-16 adapter?

The box includes a detachable mains cord for EU, US, UK or AU sockets and the 7.4×5.0 mm centre-pin DC plug fits the laptop directly.

Will this 19.5 V 230 W supply work with an older laptop that originally used a lower-wattage 19.5 V charger?

Yes, provided the older machine uses the same 7.4×5.0 mm centre-pin connector and accepts 19.5 V; the adapter simply delivers up to 11.8 A as needed.

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