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.
π TRENDnet TK-803R: 8-Port Rack Mount KVM Switch with VGA & USB Connection, USB/PS2 Support, Device Monitoring, Auto Scan - Control 8 Computers/Servers
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
Enhance Productivity with CKL HDMI KVM 2 Port 4K 30Hz Dual Monitor Extended Display (CKL-922HUA)
10 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
Computer case be quiet! Pure Base 500 black
32 Review
Computer case Deepcool Matrexx 55 black
55 Review
Computer case Deepcool Matrexx 55 MESH black
64 Review
Fractal Design Define R5 - ATX Mid Tower Computer Case - High Airflow and Silent Optimized - Includes 2x Dynamix GP-14 140mm Silent Fans - Water-Cooling Ready - Black
43 Review