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This Micron Technology MT36HVS51272PZ-667H1 is a 4GB DDR2 SDRAM module. It features a 667 MT/s transfer rate and comes in a 240-RDIMM package.

This Micron Technology MTA4ATF51264AZ-3G2R1 is a DDR4 SDRAM module with 4GB memory size and a 3200 Mb/s transfer rate. It comes in a 288-UDIMM package.

The Micron Technology MT36HTF51272FZ-667H1D6 is a 4GB DDR2 SDRAM module. It features a 240-FBDIMM package and a transfer rate of 667 MT/s.

This Micron Technology MT16KTF51264HZ-1G6M1 is a 4GB DDR3L SDRAM SODIMM memory module. It operates at 1.35V and supports data rates up to 1600 MT/s.