Samsung DDR4 16GB M391A2K43BB1-CTD ECC UDIMM PC4-21300 2666MHz 1.2V CL19 RAM 2R8

Manufacturer Part # M391A2K43BB1-CTD. Data Transfer Rate 2666MHz. Bus Type PC-21300. Arduino module. Error Correction ECC. Smart Electronics. Capacity 16GB. WIFI Module.

eBay