You can pick up 16GB or 32GB DDR4 RAM sets pretty cheap right now | PC Gamer
Amazon.co.uk: 32gb ddr4 ram
32GB single stick RAM for Blades. Same manufacturer and clock speed (3200mhz) as the stock RB RAM. Only this RAM doesn't require XMP to achieve 3200 mhz. CL22. 2x for 64GB. :
DDR4 ram 32GB on a single by kingston spotted - Tech News - Linus Tech Tips
MSI motherboard supports a single 32G DRAM, you may not guess how significant it is!