4GB DDR3 1066Mhz PC3-8500 ECC RDIMM 4Rx8 1.5V 240pin Samsung Original Part # M393B5173DZD-CF8 capacity:4GB Manufacturer Hynix Memory Type DDR4

Manufacturer Hynix Memory Type DDR4 Capacity 64GB  Data Transfer Rate 3200Mhz  Bus Type PC4-25600

Manufacturer Kingston Memory Type DDR4 Capacity 32GB Data Transfer Rate 2400Mhz Bus Type PC4-19200

Manufacturer Samsung  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2133MHz  Bus Type PC4-17000

Manufacturer Sumsung Memory Type DDR4 Capacity 16GB Data Transfer Rate 2400Mhz Bus Type  PC4-19200

Manufacturer Kingston  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2400Mhz  Bus Type PC4-19200

4GB DDR3 1066Mhz PC3-8500 ECC RDIMM 4Rx8 1.5V 240pin Samsung Original Part # M393B5173DZD-CF8 capacity:4GB Manufacturer Hynix Memory Type DDR4Manufacturer Samsung Memory Type DDR3 Capacity 4GB Data Transfer Rate 1066Mhz Bus Type PC3 8500