Need help with my RAM

[Zholotoi]

Just bought this  PC form a friend and it has 2x4GB RAM (G.Skill Ripjaws V Red DDR4 2400 PC4-19200 8GB 2x4GB CL15) and I wanted to get 8 GB more. Would this one work? (HyperX Fury HX426C16FB3/8 DIMM DDR4 8 GB 2666 MHz CL16 1R x 8). My motherboard is MSI X99A SLI PLUS (MS-7885).

[Haro]

So 3 sticks in total? Then that'll run in single channel sadly. 

Also mix and matching sticks could and couldn't work. We can't guarantee it, it could be iffy with things like xmp for example. 

But if it worked. They'll all run at 2400 and they'll be in single Channel..

You could just get another 2x4 kit with the same specs preferably or just buy a 2x8 kit. 

[Zholotoi]

4 minutes ago, TofuHaroto said:

So 3 sticks in total? Then that'll run in single channel sadly. 

Also mix and matching sticks could and couldn't work. We can't guarantee it, it could be iffy with things like xmp for example. 

But if it worked. They'll all run at 2400 and they'll be in single Channel..

You could just get another 2x4 kit with the same specs preferably or just buy a 2x8 kit. 

Thank you for the response