This high quality Total Micro 16GB DDR4 PC4-25600 1.2V Unbuffered Non-ECC CL22 2Rx8 260-Pin SODIMM module meets or exceeds OEM specs - For HP EliteBook 835 G7, 835 G8, 845 G8, 855 G8, ProBook 440 G7, 445 G7, 450 G7, 450 G8. Lifetime limited warranty