Lenovo 4X21U28814 140W Laptop Charger

140 W W · Barrel · Lenovo

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Wattage 140 W
Connector Barrel
Works with Lenovo

Lenovo 4X21U28814 140W Laptop Charger is a 140 W laptop charger with a Barrel plug for Lenovo laptops. Use the same or a higher wattage than the charger that came with your laptop. It came out in 2025.

Released: 2025-11-10

Specifications

Key specs

Wattage: 140 W
Connector: Barrel
Works with: Lenovo
Released: 2025-11-10
Part number: 4X21U28814
EAN / UPC: 0195892134145

Features

Purpose: Laptop
Power supply type: Indoor
Input voltage: 115 - 230 V
Input frequency: 50/60 Hz
Output power: 140 W
Output voltage: 28 V
Output current: 5 A
Brand compatibility: Lenovo
Compatibility: ThinkPad P16v Gen 3 (Intel) ThinkPad T1g Gen 8

Design

Product colour: Black

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Operational conditions

Operating temperature (T-T): 0 - 40 °C
Operating relative humidity (H-H): 8 - 80%

Weight & dimensions

Cable length: 1 m
Width: 120 mm
Depth: 62.5 mm
Height: 22 mm
Weight: 500 g

Check the manufacturer's page before buying.

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About this product

The ThinkPad Mobile Workstation 140W USB-C GaN Slim AC Adapter is the new GaN adapter with slim and compact design. It is your perfect replacement or spare power adapter for your PCs and provides excellent charging speed.