GOODRAM IRP-K3600D4V64L18/64GDC

Quick overview from the supplier:

64GB (Kit of 2*32GB) DDR4-3600 GOODRAM IRDM PRO DDR4 DEEP BLACK (Dual Channel Kit), PC28800, CL18, Latency 18-22-22, 1.35V, 1024x8, Aluminium BLACK heatsink