Adapter 90 Watt (EU1)

The Lenovo Adapter 90 Watt (EU1), part number 42T4435, is an indoor AC-to-DC power adapter for compatible Lenovo laptops. It converts mains power to the DC supply used by a laptop, for a desk, home office or other indoor workspace.

Its rated output is 90 W at 20 V, with a fixed, non-adjustable output voltage. The listed input range is 100–240 V at 50/60 Hz. The adapter is black.

The EU1 retail version is described as including an EU power cable. The parts listing for 42T4435 identifies a large round tip connector and a 0.5 m power cord, useful details when checking the required connection and cord arrangement.

It is intended to power compatible Lenovo equipment in a stationary indoor setup, such as a workstation. Specific laptop models are not listed.