Crucial 16GB (1x 16GB) DDR4-2133 PC4-17000 1.2V DR x4 ECC Registered 288-pin RDIMM RAM Module Model_Mac_Book_Pro_5_3 but the effective rate is

but the effective rate is 1866 megatransfers per second (MT/s) because there are 933 million rising edges per second and 933 million falling edges per second of a clock signal running at 933 MHz

HMT42GR7BMR4C-G7D7 Capacity 16GB (1x 16GB) Brand Hynix Speed DDR3-1066 -1066MT/s - 1067MT/s - PC3-8500 Voltage 1

This x8 configuration RAM module is for use in DDR2 compatible systems and operates at 667 MT/s with an overall transfer rate of PC2-5300

This 4GB (1x 4GB) DDR3L 1866 MT/s Single rank

5V Technology DDR3L Error Correction ECC Signal Processing Unbuffered Form Factor 240-pin EUDIMM Ranks Dual rank Configuration x8 Pieces in Kit 1 Compatibility

Crucial 16GB (1x 16GB) DDR4-2133 PC4-17000 1.2V DR x4 ECC Registered 288-pin RDIMM RAM Module Model_Mac_Book_Pro_5_3 but the effective rate isProduct Overview Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 16GB (1x 16GB) DDR4 2133 MT s 288 pin RDIMM RAM module from Crucial . This Dual rank, x4 configuration RAM module is for use in DDR4 compatible systems and operates at 2133 MT s with an overall transfer rate of PC4 17000. This RAM module also operates at a standard voltage of 1. 2V and is