OWC 128GB (4x32GB) DDR4 PC4-25600 3200MHz ECC UNBUFFERED DIMM SPECIFICATIONS. Capacity 128GB (4x32GB) Form Factor 288-PIN DIMM. Speed PC4-25600 3200MHz CL22 Backward Compatibility ALSO COMPATIBLE WITH 2933MHz, 2666MHz, 2400MHz, AND 2133MHz.
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