Free Express Shipping! OWC 16GB DDR4 2933 MHz R-DIMM Memory Upgrade Kit (2 x 8GB) 16GB (2 x 8GB) Capacity, 2933 MHz Clock Speed, PC4-23400, 288-Pin R-DIMM, Low Noise 8-Layer PCB, Voltage: 1.2V, 21-21-21-14.32 Timings, ECC Error Correction, Registered,...