DATARAM 8GB DELL DDR4-2666 REG 1Rx8

The DRL2666R upgrades are registered memory
modules, which conform to JEDEC's DDR4, PC4-2666V
standard. The DRL2666LR is a load-reduced memory
module (LRDIMM). One EEPROM is used for Serial
Presence Detect and a combination register/PLL, with
Address and Command Parity is also used.