The HP 836621-BG1 keyboard is a Swiss-layout replacement keyboard with an integrated PointStick for cursor control. Its layout is intended for use in Switzerland, and the pointing stick provides a way to move the cursor directly from the keyboard area.
This variant has a spill-resistant design with a drain, a construction detail that helps channel liquid away from the keyboard. The 836621-BG1 is the non-backlit version; HP’s separately listed backlit Swiss keyboard uses a different part number, 836623-BG1.