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Black internal power cable with round 7.9 by 5.5 mm connector for Lenovo laptop

Ruth's sister

Ruth's sister internal power cable 20V 7.9 * 5.5

SKU CH-D3QS-NNBZ0

Delivers 20 V DC power to compatible Lenovo laptops via a 7.9 × 5.5 mm round connector

  • Designed for Lenovo laptops requiring 20 V DC power
  • 9 × 5.5 mm round connector matches the original jack
  • Supplies stable 20 V output for reliable charging
  • New internal cable ready for direct installation

Lenovo 20 V DC power cable

This internal cable delivers a 20 V DC output through a round connector measuring 7.9 mm by 5.5 mm. It is designed for Lenovo laptops that require this specific barrel size and voltage. Builders repairing or replacing a damaged power lead will find the correct fit. It is not suited for devices using a different connector diameter or voltage.

Sustained load behaviour

The cable maintains a steady 20 V connection during continuous charging sessions without intermittent contact. Its fixed pin geometry prevents the wobble that can cause voltage drops over long periods. Users needing a right-angle strain relief or a higher current rating should look elsewhere.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 20 V cable generate during continuous use?

The cable carries 20 V DC and is designed for normal Lenovo charging loads; it stays cool under typical daily operation.

Which Lenovo laptop models accept the 7.9 × 5.5 mm round connector?

Any Lenovo notebook that uses a 20 V DC input with a 7.9 mm outer and 5.5 mm inner barrel will accept this cable.

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