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. :
CORSAIR VENGEANCE 32GB (1PK 32GB) 4800MHz DDR5 C40 SODIMM Laptop Memory Black CMSX32GX5M1A4800C40 - Best Buy
Laptop Ram 32gb DDR4 Single Stick in Accra Metropolitan - Computer Hardware, Ahmed Gh | Jiji.com.gh
HyperX Fury 32GB 2666MHz DDR4 Ram CL16 DIMM Black Single Stick Desktop Memory with low-profile heat spreader at Amazon.com