Kingston KVR400/1GR 1GB DDR RAM PC-3200 184-Pin DIMM at Amazon.com
Micron 256MB DDR RAM PC2100 200-Pin Laptop SODIMM at Amazon.com
Richer-R Memory Ram,200 Pin Mini DDR1 1GB 400MHz PC3200 Memory Ram Circuit Module Board Chip for Laptop at Amazon.com
OWC 32GB (2 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory, Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs, (OWC2666DDR4S32P) at Amazon.com