The latest BG3 single package SSDs feature the M.2 2230 removable module and will be available in 128GB, 256GB, and 512GB capacities. The NVMe technology provides sequential read speeds of up to 1,520 MB/s.
https://www.notebookcheck.net/Toshiba-announces-M-2-form-factor-BG3-Single-Package-NVMe-SSD.240106.0.html