Dell Precision 3450 Small Form Factor SFF Workstation (i7-11700 4.90Ghz,1TB+256GB SSD,16GB,QD P620-2GB,W11P)
opened up a computer at work for a memory upgrade, and was quite surprised at the number of M.2 slots in this little Dell Precision 3450 : r/pcmasterrace
Support for Precision 3450 Small Form Factor | Documentation | Dell US