DDR4 Ram problem

[No_Clue_W-S-E]

Hi to everyone and thanks in advance for the help. I´m buying one stick of RAM to add to my existing one, but they're a little bit different:

 

My old stick is: 

Ballistix Sport LT 8GB DDR4-2400 UDIMM 16-16-16 • Unbuffered • NON-ECC • DDR4-2400 • 1.2V • 1024Meg x 64 •   https://www.crucial.com/usa/en/bls8g4d26bfsck

The new one will be:

Ballistix Sport LT 8GB DDR4-2666 UDIMM 16-18-18 • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 1024Meg x 64 • https://www.crucial.com/usa/en/bls8g4d240fsck

Will these two match up good, or is there a possibility for trouble?

I cant find the exact same one so that´s why I´m going for a different one :(

[Tan3l6]

  

3 minutes ago, No_Clue_W-S-E said:

Will these two match up good, or is there a possibility for trouble?

 

Most likely they get along fine, running at the speed and timings of the slower stick.