Amazon Lists Intel's Core i9-9900K For $582.50, New Packaging (Updated) | Tom's Hardware
Intel Core i9-9900KS Desktop Processor 8 Cores up to 5.0GHz All-Core Turbo Unlocked LGA1151 Z390 127W
Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W
Amazon.com: Micro Center Intel Core i9-11900K Desktop Process 8 cores up to 5.3 GHz Unlocked LGA 1200 125W with MSI MPG Z590 Gaming Force ATX Motherboard : Electronics