
For anyone stuck with PS/2 KVM switches and dealing with USB only servers, we've been using them for 2 years and they work great. Only thing is they are overpriced and KVM switches are cheap these days. For the price of 8 of these, you could probably buy a new USB KVM switch with cables. So if you need to replace all or almost all, I suggest just buying a new KVM switch.

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

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

Enhance Productivity with CKL HDMI KVM 2 Port 4K 30Hz Dual Monitor Extended Display (CKL-922HUA)
10 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

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

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

Computer case be quiet! Pure Base 500 black
32 Review