Lenovo 4X21U28835 power adapter/inverter Indoor 180 W Black

The Lenovo 4X21U28835 (Power Adapter Lenovo 180W Indoor Black) is a compact 180W USB‑C GaN slim AC adapter designed for Lenovo workstations and compatible laptops. It replaces or serves as a spare power adapter, offering fast charging and a smaller profile enabled by GaN technology. The unit is intended for indoor use and comes in black with a 1.0 m power cord.

Advantages

The GaN design reduces size and weight compared with traditional adapters while delivering up to 180 W output power. It supports universal input voltages (100–240 V, 50/60 Hz) for worldwide use and includes safety certifications (UL/CB/CE). A 1.0 m cable and USB‑C output make it suitable for modern Lenovo workstation machines and other compatible USB‑C laptops.

Suitable for

• Charging Lenovo workstations with USB‑C power input
• Replacing a lost or damaged original Lenovo power adapter
• Using as a spare adapter at home or in the office
• High‑power laptop charging where up to 180 W is required

Key specifications

• Manufacturer part number (MPN): 4X21U28835
• Output power: 180 W
• Output voltage: 36 V
• Input voltage: 100–240 V
• Input frequency: 50/60 Hz
• Power connector: USB‑C
• Power cord length: 1.0 m
• Product colour: Black
• Weight: 0.523 kg
• Intended use: Indoor laptop power adapter

How to use

Connect the AC adapter to an appropriate mains outlet, then plug the USB‑C connector into the laptop's USB‑C power port. Ensure the input voltage of the outlet is within the supported range (100–240 V). When not in use, disconnect the adapter from the mains and store it in a dry place. Do not use the adapter if the cord or housing is damaged.

Recommendations

Use this Lenovo 180W USB‑C GaN adapter with compatible Lenovo workstation models and other laptops that accept USB‑C power delivery up to 180 W. Avoid exposure to liquids and extreme temperatures; use only with devices that match the adapter’s voltage and power specifications.