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Thermaltake TOUGHRAM RGB White DDR4 4000MHz 16GB (8GB x 2) 16.8 Million Color RGB Alexa/Razer Chroma/5V Motherboard Syncable RGB Memory R022D408GX2-4000C19A at Amazon.com
Kingston FURY Renegade RGB 8GB DDR4 4000MHz Single Memory Module (1 x 8GB) KF440C19RBA/8 Desktop Memory - Newegg.com