v-Color 64GB (2 x 32GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for microservers, workstations, Networking Platforms and Embedded Systems 2Rx8 CL19 1.2V (TES432G26D819K-VC) at Amazon.com
G.Skill RipJaws SO-DIMM Series 32GB (2 x 16GB) 260-Pin (PC4-19200) DDR4 2400 CL16-16-16-39 1.20V SO-DIMM Memory Model F4-2400C16D-32GRS at Amazon.com
CORSAIR VENGEANCE LPX 16GB (2PK x 8GB) 3600MHz DDR4 C18 DIMM Desktop Memory Black CMK16GX4M2D3600C18 - Best Buy
v-Color DDR4 128GB (2 x 64GB) Hynix IC 2933MHz(PC3-23400) R-DIMM for Apple Mac Pro 2019 ECC Registered DIMM Dual Rank 2Rx4 1.2V CL21 (VHA21ASDRAG4T-CG29RD) at Amazon.com
Crucial 32GB (2 x 16GB) 260-Pin DDR4 SO-DIMM DDR4 2133 (PC4 17000) Laptop Memory Model CT2K16G4SFD8213 Laptop Memory - Newegg.com
G.Skill Ripjaws 16GB 2 x 8GB DDR4-2666 PC4-21300 CL19 Dual Channel SO-DIMM Memory Kit F4-2666C19D-16GRS - Micro Center
CORSAIR Vengeance 16GB (2 x 8GB) 260-Pin DDR4 SO-DIMM DDR4 2400 (PC4 19200) Notebook Memory Model CMSX16GX4M2A2400C16 - Walmart.com
v-Color 32GB (2 x 16GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for NAS Micro Server/Workstation/Compatible with Synology 21 Series 2Rx8 CL19 1.2V (TES416G26D819K-VKC) at Amazon.com