Not every Redline kit carries lighting — this ST variant runs the same DDR5 platform as Mushkin's RGB Redline kits but without it, for builds where a plain heatspreader is preferred. Both capacities share one speed and timing.
This kit is 2×16GB, 32GB total, rated 6000 MT/s CL30. Because 6000 MT/s and CL30 are constant across this family, the two listings differ only in 32GB — there's no faster or slower bin hiding behind the same name here.
It is UDIMM DDR5 for standard desktop boards. As with any DDR5 kit, the rated 6000 MT/s is only reached once the XMP or EXPO profile is selected in BIOS rather than left on the board's default.