Well, essentially the only real reason is to save a few bucks. You could quite easily buy a for Kioxia (Toshiba) BG3/BG4/BG5 SSD M.2 2230 30mm drive.
Nku CFexpress Type B Card To NVME M.2 2230 SSD Adapter SN530 BG3 Drive DIY Kit
Lexar CFexpress Type B Diamond Series 256GB – CFexpress Type B card Diamond 1900
SXJ B Type Graphics Card Support Bracket Durable Metal Material Support Holder
SSD SanDisk 1TB Extreme Portable USB 3.2 Gen 2 Type C Type A IP55 SDSSDE61
5SS1A40305 - 512GB B b B, m.2, PCIE3X4, SSD Hard Drive 5F7NT
MSI PRO H810M-B Wi-Fi 6E LGA1851 mATX Motherboard PRO H810M-B WIFI6E
