
I was looking for something similar where I could easily switch multiple displays between my work Mac that uses a dock and my personal gaming PC. I thought that would be the solution, and it almost was. Unfortunately, it didn't quite work. There were issues with USB on one input (PC) and the display was correctly showing full 4k on the other (Mac). I tried different combinations, different cables, but unfortunately nothing changed. So while I was hoping to find the perfect solution for my specific needs, I expect my search will continue.

CKL Quad Monitor HDMI KVM Switch 4 Port 4K@30Hz with Cables - Extended and Mirrored Display Support for Windows, Linux, and Mac
11 Review

NEWCARE HDMI KVM Switch: 4K@60Hz, 2x1 HDMI2.0 Ports + 3X USB KVM Ports - Share 2 Computers on UHD Monitor, with Wireless Keyboard and Mouse Support - USB Disk, Printer, USB Camera Compatible
10 Review

4 Port USB 3.0 Switch Selector - Pubioh KVM Switch for Mouse, Keyboard, Printer, Scanner - 2 in 4 Out Sharing Box with Switch Button and 2 USB 3.0 A to A Cables
11 Review

CKL 4 Port KVM Switch Dual Monitor DisplayPort 4K 60Hz: Unprecedented Multi-Computer Control with Audio, USB 2.0 HUBS, and DP 1.2
11 Review

Zalman Z3 M ATX π» Tower Computer: A Compact and Powerful Machine
77 Review

Computer case Deepcool Matrexx 55 MESH black
64 Review

Fractal Design Node 304 - Black - Mini Cube Compact Computer Case - Small Form Factor - Mini ITX β mITX - Enhanced Airflow - Modular Interior - Includes 3x Fractal Design Silent R2 120mm Fans - USB 3.0
42 Review

Computer case AeroCool Cylon black
39 Review