A financial blogger on Chinese social media has posted various images of Nvidia GeForce RTX 30 series laptops being used for cryptocurrency mining. The rigs on show involve dozens of gaming notebooks stacked up just for hunting down some increasingly valuable Ethereum. Some of the laptops visible are RTX 3060 machines that cost around US$1,000.
https://www.notebookcheck.net/Nvidia-GeForce-RTX-30-series-laptop-shortages-likely-as-Ethereum-hunters-in-China-turn-to-mobile-mining.518565.0.html