Lenovo 4X21U34353 power adapter/inverter Indoor 330 W Black

The ThinkStation Slim 330W AC Adapter (Slim tip) is a replacement or spare Lenovo power adapter for workstation and laptop use. It provides a 330 W output with 20 V voltage and accepts 100–240 V input at 50/60 Hz. The adapter is intended for indoor use, comes in black, and includes a line cord with a 3‑pin connector and a cable up to 1.8 m long. It is compatible with workstations that use a rectangular "Slim Tip" power plug and is designed to meet common safety and EMC standards.

Advantages

The adapter delivers stable 330 W power suitable for high‑performance workstation machines and laptops that require a Slim Tip connector. Its 1.8 m cable length provides flexibility in device placement, while compact physical dimensions and a single black unit make it practical as a replacement or spare. The unit supports universal input voltage (100–240 V) and standard input frequency (50/60 Hz), enabling use in different regions.

Suitable for

• Lenovo workstations and laptops with a rectangular "Slim Tip" power plug
• Users needing a spare or replacement 330 W indoor power adapter
• Setups requiring a longer cable for flexible placement (up to 1.8 m)

Key specifications

• Brand compatibility: Lenovo
• Model / MPN: 4X21U34353
• Output power: 330 W
• Output voltage: 20 V
• Input voltage: 100–240 V
• Input frequency: 50/60 Hz
• Connector type: rectangular "Slim Tip"
• Line cord: 3‑pin
• Cable length: up to 1.8 m
• Intended use: Indoor, laptop/workstation
• Colour: Black
• Weight: 1.034 kg

How to use

Connect the 3‑pin line cord to a suitable AC mains outlet and plug the rectangular Slim Tip into the workstation or laptop power inlet. Ensure the input voltage of the outlet is within 100–240 V and that the device is intended to accept a 20 V, 330 W supply. Position the adapter indoors on a stable, ventilated surface and avoid covering it while in use.

Recommendations

Use only with compatible Lenovo devices that accept the Slim Tip connector and match the output specifications. If unsure about compatibility, verify the device model or consult product documentation before use. Avoid exposing the adapter to moisture, extreme temperatures, or prolonged direct sunlight.