Number of PinsDDR3 240pins : DDR4 288pins. Frequency: PC4-17000 (2133MHz)/PC4-19200 (2400MHz)/PC4-21300 (2666MHz)/PC4-25600(3200MHz). Compatibility: Support all the DDR4 DIMM motherboard. Bus Speed2133MHz / 2400MHz / 2666MHz / 3200MHz.
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