The HP 120W 18.5V 6.5A (Part Number: 519331-001) with a 7.4×5.0mm large round tip is a less common variant of HP's 120W adapter, typically used for larger workstations and high-performance laptops. Below is a list of compatible HP models that may use this adapter.

🔌 Compatible HP Product Line (7.4×5.0mm Connector)

This adapter is primarily used for:

  1. HP EliteBook Workstation & High-Performance Laptops

    • HP EliteBook 8x70w / 8x80w (Mobile Workstation models)

    • HP EliteBook 8570w / 8770w

    • HP EliteBook 840 G1 (Workstation Edition)

  2. HP ZBook Mobile Workstations

    • ZBook 15 (G1, G2, G3)

    • ZBook 17 (G1, G2, G3)

    • ZBook Studio (Early Models)

  3. Older HP Business & Performance Laptops

    • HP ProBook 4x70s / 6x70s (some models)

    • HP 8560w / 8760w (Mobile Workstations)

⚠️ Important Notes

  • Not all 120W HP adapters are interchangeable—the 7.4×5.0mm tip is larger than the more common 4.5×3.0mm version.

  • Using the wrong adapter (wrong tip size or voltage) can damage your laptop.

  • If your laptop originally came with a 7.4×5.0mm adapter, do not force a smaller 4.5mm plug.


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