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Black rectangular AC adapter with 7.4x5.0mm centre-pin connector and detachable power cord

Graviton

Graviton PA-1171-72 170W 20V 8.5A 7.4x5.0mm AC Adapter

SKU CH-XKSK-TQN8B

Delivers 170 W at 20 V 8.5 A with a 7.4×5.0 mm centre-pin plug and CE certification

  • Delivers 170 W for demanding laptop workloads
  • 20 V 8.5 A output matches original charger specs
  • 4 x 5.0 mm centre-pin plug fits LITEON port
  • 100-240 V 50-60 Hz input works worldwide
  • CE certified for safety compliance

What this adapter powers

The Graviton PA-1171-72 is a 170 W AC adapter built for laptops that require a 20 V 8.5 A supply. It accepts a 100-240 V 50-60 Hz input and comes with a choice of EU, US, UK or AU power cords. The barrel plug measures 7.4x5.0 mm with a centre pin. This unit suits owners of compatible LITEON chargers who need a direct replacement.

The spec that confirms fit

The critical match is the 7.4x5.0 mm barrel connector with a centre pin and the 20 V 8.5 A output rating. Only devices that specify this exact plug geometry and voltage-current pair will work correctly. Check the original charger label for the PA-1171-72 part number before ordering. A different plug size or amperage will not mate or may underpower the system.

Behaviour under sustained load

Rated for continuous 170 W delivery, the adapter maintains its 20 V output while the laptop draws up to 8.5 A during prolonged workloads. The wide 100-240 V input range keeps it stable across global mains voltages. CE certification indicates compliance with European safety standards for continuous operation. The included power cord completes the connection to the wall outlet.

Highlights

  • Delivers 170 W for demanding laptop workloads
  • 20 V 8.5 A output matches original charger specs
  • 4 x 5.0 mm centre-pin plug fits LITEON port
  • 100-240 V 50-60 Hz input works worldwide
  • CE certified for safety compliance

Specifications

No published specifications for this item yet.

Questions about this item

What does the 170W rating mean when the adapter is connected to a laptop?

The adapter can deliver up to 170 watts at 20 volts and 8.5 amps, matching the power draw of compatible LITEON laptops under full load.

What input voltage range does the AC adapter support and what does that cap in practice?

It accepts 100 to 240 volts at 50 to 60 Hz, so it works on mains supplies worldwide without a separate voltage converter.

What physical connector does the adapter use and will it fit my laptop's charging port?

A 7.4 mm by 5.0 mm barrel plug with a centre pin, designed for laptops that list the PA-1171-72 part number.

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