Micron 4GB (1x 4GB) CL9 DDR3L-1600 PC3L-12800 1.35V / 1.5V ECC Registered 240-pin RDIMM RAM Module Classification_ram-ddr3-1333-sodimm-1gb-1x-fm and don't be surprised if

and don't be surprised if you can actually upgrade your Mac with double the amount of RAM that was originally specified by Apple

This Quad rank

HMT125S6DFR8C-H9N0  Capacity 2GB (1x 2GB) Brand Hynix Speed DDR3-1333 - 1333MT/s - PC3-10600 Voltage 1

2xM393B1K70DH0-CMA Capacity 16GB (2x 8GB) Brand Samsung Speed DDR3-1866 - 1866MT/s - PC3-14900 Voltage 1

This has left the market in a difficult situation with wide spread chip shortages which has driving up the price on all RAM

Micron 4GB (1x 4GB) CL9 DDR3L-1600 PC3L-12800 1.35V / 1.5V ECC Registered 240-pin RDIMM RAM Module Classification_ram-ddr3-1333-sodimm-1gb-1x-fm and don't be surprised ifProduct Overview Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 4GB (1x 4GB) DDR3L 1600 MT s 240 pin RDIMM RAM module from Micron . This RAM module is for use in DDR3L compatible systems and operates at 1600 MT s with an overall transfer rate of PC3L 12800. This RAM module also operates at a standard voltage of 1. 35V 1. 5V with a CAS Latency of CL9, and is