Sipeed has introduced a new laptop called Lichee Book 4A. The main highlight is the ability to upgrade the processor with the RISC-V compute modules. It starts at $189, which is the pre-order price for the barebones variant with no Core Board installed, and goes all the way up to $349 with an LM4A module, 16 GB of RAM, and 128 GB eMMC storage.https://www.notebookcheck.net/Affordable-Sipeed-Lichee-Book-4A-offers-processor-upgradability-with-RISC-V-CPU-modules.849711.0.html
These cores are not SiFive, they are developed by a company linked to Alibaba