Crucial RAM 32GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT32G4SFD832A at Amazon.com
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. :
Brand New Samsun. G PC-4 3200 32GB 16GB 4GB Ecc Udimm Desktop Memory Stick DDR4 3200MHz RAM (M391A4G43AB1-CWE) - China Ecc Udimm Desktop Memory Stick DDR4 32GB and Ecc Udimm Memory Bar
✓Best DDR4 32GB RAM Memory Kit | Fastest memory for your AMD PC or Intel - YouTube