Thermaltake adds a 3600 MHz kit to their DDR4 memory TOUGHRAM Z-ONE series, the ones with that nice brushed aluminum heat spreader.
According to TT, high-quality selected ICs are used for the memory chips, and there are two types of clocks: 3,600MHz (latency 18 / operating voltage 1.35V) and (was already available) 3,200MHz (latency 16 / operating voltage 1.35V). Only 8GBx2 dual-channel kits are available.
Memory profile is Intel XMP2.0, supported platforms are Intel X299 / 300/200/100 series, AMD X570. The product warranty would be a lifetime.