NShi
NShi 20V 6.75A 135W USB Pin AC Adapter laptop replacement part
Replacement 135W AC adapter with USB-Pin DC plug for Lenovo ThinkPad T440p, T540p, Y50 and Ultra Dock
- Worldwide voltage support with 100-240V 50-60Hz input
- Delivers 135W power at 20V 6.75A output
- USB Pin DC connector fits compatible Lenovo docks
- Replaces part numbers ADL135NDC3A 45N0361 45N0501
- Works with ThinkPad T440p T540p Y50 and Ultra Dock
Purpose and audience
This 135W AC adapter replaces the original charger for Lenovo ThinkPad T440p, T540p and IdeaPad Y50 laptops as well as the ThinkPad Ultra Dock 135W. It delivers 20V at 6.75A through a USB Pin connector and accepts 100-240V input for worldwide use.
Fit and limits
The unit suits owners of the listed ThinkPad and IdeaPad models who need a direct replacement with the correct DC plug. Buyers whose laptops require a different voltage, amperage or barrel-style connector should look elsewhere, as the USB Pin interface is not interchangeable with other tip types.
Sustained operation
Rated for continuous 135W output, the adapter maintains stable 20V 6.75A delivery during extended charging and docking sessions. The 100-240V 50-60Hz input range ensures consistent performance across international mains supplies without derating.
Highlights
- Worldwide voltage support with 100-240V 50-60Hz input
- Delivers 135W power at 20V 6.75A output
- USB Pin DC connector fits compatible Lenovo docks
- Replaces part numbers ADL135NDC3A 45N0361 45N0501
- Works with ThinkPad T440p T540p Y50 and Ultra Dock
Specifications
No published specifications for this item yet.
Questions about this item
What cable do I need to connect this adapter to the mains?
The package includes the AC adapter only; a standard IEC C13 mains lead with a three-prong plug for your region is required separately.
Will this 135 W unit power my ThinkPad Ultra Dock 40A20135XX and charge the laptop at the same time?
Yes, it matches the dock's 135 W specification and the USB-pin DC plug fits the dock's input, so both dock and laptop receive power.
How can I confirm the adapter is delivering the rated 20 V 6.75 A after I plug it in?
Measure the DC plug with a multimeter set to DC volts; it should read close to 20 V under load, and the laptop or dock should show charging at full speed.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Kensington Desk Mount Cable Anchor K64613WW accessory
- Black
- Provides a secure a…
Panasonic CF-VDR291U laptop cooling pad
- Optical Drive
- Buffer Size: 2 MB B…
eReplacements PB992A-ER laptop battery 14.4V
- Battery
- Lithium-Ion



