https://wccftech.com/lenovo-legion-9000k-first-gaming-pc-intel-12th-gen-core-alder-lake-cpu-ddr5-pcie-5/

Lenovo revealed their newest Legion 9000K desktop gaming PC, with an expected launch date of October 29, 2021, making it the first Intel Alder Lake 12th Gen processor-based gaming PC to hit the market.

Lenovo's Legion 9000K series is expected to support PCIe 5.0 and DDR5 memory. It is also speculated that it will ship with the Intel Z690 motherboard. The Intel Z690 "will carry the LGA 1700 socket which is designed around Alder Lake and future generation CPUs. It also looks like only the flagship Z690 motherboards will be able to support DDR5 memory with native speeds of up to 4800 MHz whereas cheaper motherboards based on mainstream & budget-tier chipsets (H670, B650, H610) will retain DDR4-3200 support."