Crucial 16GB DDR4 2400 MHz SO-DIMM Memory Module Kit for Mac (2 x 8GB) 16GB (2 x 8GB) Capacity, 2400 MHz Clock Speed, PC4-19200, 260-Pin SO-DIMM, 1.2V, CL17 Latency, Unbuffered, Non-ECC COMPUTER MEMORY-Computer Memory