Will these parts work together?

[NovaPvP]

I want to upgrade my computer and to be honest I know almost nothing about PC parts and how they work together. I am buying these and want to know if they will work together.

CPU: Intel Core i5-8400
Motherboard: GIGABYTE H370 HD3 (LGA1151/Intel/USB 3.1 Gen 2 (USB3.1) Type
A/HDMI/M.2/ATX/DDR4/Motherboard)
RAM: Ballistix Sport LT 8GB Single DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin Memory - BLS8G4D26BFSEK (Red)

And I have a GTX 960 I'm basically changing out all of my parts I know the CPU and Motherboard will work together since they come in a pack but will all of these work together?

 

[valcan11]

Yes all parts will work together. There is a x16 PCI-E connector on the GIGABYTE motherboard so the graphics card will fit perfectly and the DDR4 memory will work with the H370, I also believe the clock speed of the RAM will not be limited with the motherboard. And correct the motherboard supports 8th gen CPUs so you're good. It's a good pc overall. Well done.