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Black rectangular 40W AC adapter with 10 ft power cord

WAWEIS

WAWEIS NP-N310-KA04US 40W ac adapter

SKU CH-JXF0-BXG9C MPN NP-N310-KA04US

A 40 W laptop AC adapter with 100–240 V input, 10 ft cord and over-voltage, over-current, short-circuit and overheating protection

  • World-wide 100-240 V input works across regions
  • 40 W output matches original adapter rating
  • 10 ft cord gives flexible desk placement
  • Multiple safety protections guard against faults
  • FCC, CE and RoHS certified for compliance

40W Replacement AC Adapter

The WAWEIS NP-N310-KA04US is a 40W AC adapter built to replace original chargers for compatible notebooks. It accepts a worldwide input range of 100-240VAC at 50/60Hz for global use. The unit ships with a total 10 Ft long power cord for flexible placement. It targets owners of specific models needing a direct power supply substitute.

Sustained Load Protection Features

Under continuous operation the adapter relies on multiple safety layers to maintain stable output. Over current protection, total power protection and over voltage protection guard against electrical stress. Short circuit protection adds a further hardware safeguard during prolonged sessions. These mechanisms work together to prevent damage to both the adapter and the connected notebook.

Interface and Compatibility Limits

The barrel connector fits the listed device models including NP-N310-KA04US, NP-N310-KA05 and cross-references such as AD-6019 and SPA-830E. It cannot serve laptops requiring a different voltage, polarity or connector geometry. Buyers needing USB-C Power Delivery or higher wattage outputs must select a different product. The 40W ceiling also rules out charging larger gaming or workstation notebooks.

Highlights

  • World-wide 100-240 V input works across regions
  • 40 W output matches original adapter rating
  • 10 ft cord gives flexible desk placement
  • Multiple safety protections guard against faults
  • FCC, CE and RoHS certified for compliance

Specifications

No published specifications for this item yet.

Questions about this item

How much heat and noise does the 40W adapter produce when it runs all day?

The unit has no fan and relies on passive cooling, so it stays silent; the built-in overheating protection and smart chip keep temperatures in check during continuous use.

Which laptop models or connector types must I already own for this charger to work?

It replaces adapters such as AD-6019, SPA-830E, AA-PA2N40W, AD-4019 and AD-4019S and fits notebooks using the NP-N310-KA04US or NP-N310-KA05 designations.

Will the 100-240V input and 10 ft cord let me use this adapter with the older power strips and wall sockets I already have?

Yes, the wide 100-240V 50/60Hz input works worldwide, and the 10 ft cable reaches distant or legacy outlets without an extension lead.

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