Main Frequency: 2133MHz / 2400MHz / 2666MHz / 3200MHz. Bus Speed2133MHz / 2400MHz / 2666MHz / 3200MHz. ModelDDR3 DDR4 4GB 8GB 16GB. TypeDDR3 DDR4 RAM. Number of PinsDDR3 240pins : DDR4 288pins. Total Capacity4GB 8GB 16GB.
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