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Black rectangular AC adapter with USB tip connector and detachable power cord

myVolts

myVolts 135W USB tip AC Adapter for Lenovo Y40-70 Y50-70 ThinkPad T440p T540p

SKU CH-DR11-78HP4

135W AC power adapter with USB tip connector delivering 20V 6.75A output for compatible Lenovo IdeaPad and ThinkPad models

  • Delivers 135W of power for demanding Lenovo laptops
  • USB tip connector fits listed IdeaPad and ThinkPad models
  • Wide AC 100-120V input works across supported regions
  • Replaces multiple Lenovo part numbers including ADL135NDC3A
  • Includes both AC adapter and power cord in package

135W USB-tip AC adapter

This 135-watt power supply delivers 20 volts at 6.75 amps through a USB-style barrel connector. It replaces Lenovo part numbers such as ADL135NDC3A and the 45N0052–45N0059 series. The unit accepts 100–120 V AC input at 50–60 Hz and ships with a matching mains cord. It is built for IdeaPad Y‑series and ThinkPad T‑series laptops that require a 135 W USB-tip source.

Capacity and headroom

The adapter comfortably runs Y40‑70, Y50‑70, Y700‑15ISK, Z710 and ThinkPad T440p, T450p, T460p, T540p, W510 and W541 models under full load. It will not meet the demand of systems that draw more than 135 W or that use a USB‑C power port. Buyers whose laptops specify a higher wattage or a different connector should look elsewhere.

Replaces 135W USB-tip chargers

This unit directly substitutes any 135 W Lenovo charger with the same USB-tip output, including the extensive 4X20E and 55Y93xx part families. The upgrade is worthwhile when the original adapter is lost, damaged or no longer holds a stable voltage. It does not add features such as faster charging or a different plug type.

Highlights

  • Delivers 135W of power for demanding Lenovo laptops
  • USB tip connector fits listed IdeaPad and ThinkPad models
  • Wide AC 100-120V input works across supported regions
  • Replaces multiple Lenovo part numbers including ADL135NDC3A
  • Includes both AC adapter and power cord in package

Specifications

No published specifications for this item yet.

Questions about this item

Will the USB tip connector on this 135W adapter fit the charging port on my older ThinkPad T540p?

Yes, the USB tip connector matches the T540p charging port and the adapter delivers the required 20V 6.75A 135W output.

How can I confirm the adapter is supplying the correct 20V 6.75A output once I have it connected?

The laptop battery icon will show charging and the system power meter will report the full 135W input when the adapter is working correctly.

Does the package include both the AC adapter brick and the mains power cord, or do I need to buy the cord separately?

The box contains one 135W AC adapter and one power cord, so no separate cord purchase is required.

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