Thermaltake TOUGHRAM RGB DDR4 4000MHz 16GB (8GB x 2) 16.8 Million Color RGB Alexa/Razer Chroma/5V Motherboard Syncable RGB Memory R009D408GX2-4000C19A at Amazon.com
Ryzen 5600 memory: I enabled the XMP profile for 4000 mhz RAM... - CPUs, Motherboards, and Memory - Linus Tech Tips
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