4GB DDR3 1066Mhz PC3-8500 ECC RDIMM 4Rx8 1.5V 240pin Samsung Original Part # M393B5173EHD-CF8 DDR5-RDIMM Server Manufacturer Hynix Memory Type DDR3

Manufacturer Hynix Memory Type DDR3 Capacity 8GB  Data Transfer Rate 1333Mhz  Bus Type  PC3-10600

Manufacturer Kingston  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2666MHz  Bus Type PC4-21300

Manufacturer Samsung  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 3200Mhz  Bus Type  PC4-25600

Manufacturer Crucial  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2666MHz  Bus Type PC4-21300

4GB DDR3 1066Mhz PC3-8500 ECC RDIMM 4Rx8 1.5V 240pin Samsung Original Part # M393B5173EHD-CF8 DDR5-RDIMM Server Manufacturer Hynix Memory Type DDR3Manufacturer Samsung Memory Type DDR3 Capacity 4GB Data Transfer Rate 1066Mhz Bus Type PC3 8500