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Black rectangular AC adapter with US plug and 8.0x7.4mm barrel tip

eForChina

eForChina US Plug AC Adapter 20V 4.5A 90W 8.0x7.4mm Black

SKU CH-YG96-9AVB0

Delivers 90 W at 20 V 4.5 A through an 8.0×7.4 mm tip for compatible notebooks

  • Adapter typePower Adapter
  • Product colorBlack
  • Universal 100-240V input works worldwide
  • 90W output powers demanding laptops reliably
  • 20V 4.5A delivery matches original charger specs
  • 0x7.4mm tip fits listed models precisely
  • Compatible with V350A, V350G, U130, B450L, V450L, V450G, B450, S10, S10-2, V550A, 430MS, S12

What this adapter powers

This 90 W AC adapter supplies 20 V at 4.5 A to a range of compatible laptops including V350A, V350G, U130, B450L, V450L, V450G, B450, S10, S10-2, V550A, 430MS and S12. It is intended for users who need a direct replacement charger with an 8.0x7.4 mm barrel tip. The unit accepts mains input from 100 to 240 V at 50 to 60 Hz.

Connector and build implications

The fixed 8.0x7.4 mm output tip matches the listed models without requiring an additional gender changer. A US-style mains plug is integrated into the black plastic housing so no separate cable is needed. Buyers whose laptops use a different barrel size or a USB-C power input cannot use this adapter.

Heat, noise and power draw

The adapter draws up to 2.4 A from the wall and converts it to 90 W DC output with no moving parts, so operation is silent. Normal warmth is expected during sustained charging but the sealed enclosure has no fan to generate noise. Efficiency and thermal limits are those inherent to a 90 W switch-mode supply.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 55% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Product colorBlack
Adapter typePower Adapter

Questions about this item

What voltage range does the adapter accept on its AC input?

The adapter accepts AC 100-240V at 50-60Hz, so it works on mains supplies worldwide without a voltage converter.

What barrel-plug size must the laptop’s DC jack accept?

The fixed output tip measures 8.0 mm outer diameter by 7.4 mm inner diameter, so the laptop jack must match those dimensions.

How do you connect the adapter, and what polarity mistake should be avoided?

Plug the US mains cord into the wall, then insert the 8.0x7.4 mm tip into the laptop; ensure the tip’s centre pin is positive, as reversing polarity can damage the notebook.

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