CAS LATENCY:CL19 (2666MHz) SPEED: PC4-21300 (2666MHz). 204-PIN DDR4 SODIMM. 288-PIN DDR4 DIMM. 288-PIN DDR4 ECC DIMM KIT. 288-PIN DDR4 ECC REG DIMM KIT. COMPATIBILITY:MAC PRO 2019. APPLE MAC PRO (2019) 8-Core (3.5GHz).
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