DDR4 - module - 16 GB - SO-DIMM 260-pin - 2666 MHz / PC4-21300 - CL15 - 1.2 V - unbuffered - non-ECC - for (non-ECC) : EliteBook 1050 G1 735 G5 735 G6 745 G5 745 G6 755 G5 830 G6 830 G8 840 G8 840r G4 845 G7 850 G6 855 G7 EliteBook x360 830 G6 ProBook 430 G6 430 G7 440 G7 445r G6 450 G6 450 G7 455r G6 640 G5 64X G4 650 G5 ZBook 14u G6 15 G5 15u G6 15v G5 17 G5