The AOOCOO takes our top spot for its 8K support and gaming performance, the CMSTEDCD impressed us with its exceptional build quality and perfect ratings, while the SGEYR delivers surprising value at a budget price point. As an Amazon Associate we earn from qualifying purchases. Control multiple computers with one keyboard, mouse, and monitor using our recommended KVM switches, with setup guides, troubleshooting tips, and security considerations for work and home office environments. We focus on 8K/4K refresh rates, USB 3. A KVM switch is a straightforward device on the surface, but the technical variables underneath can make or break your experience.