Please help! Should I use gray or black DDR4 slots?

DDR4 sticks won't fit in DDR5 slots either So, if you're planning to keep your current motherboard, sticking with DDR4 is the way to go 5

Compared to its predecessor, DDR5 offers improved speed, higher capacity, greater power efficiency, and more reliable error correction As a

ddr5 slot compatible with ddr4 DDR4 and DDR5 RAM sticks are installed in pretty much the same way, but they're not cross compatible Even though some CPUs might work with both

ddr5 slot Supports Intel® Core™ 14th 13th 12th processors · Unparalleled Performance：Twin 16*+1+1 Phases Digital VRM Solution · Dual Channel DDR4：4*SMD DIMMs with XMP