ConnectPRO’s KVM switches are widely trusted in professional environments for their robust build, reliability, and patented DDM (Dynamic Device Mapping) technology. However, some users notice that not all keyboards—particularly some advanced or gaming-focused models—function correctly when connected through a ConnectPRO KVM switch. This isn’t a defect in the switch itself, but rather a result of how certain keyboards are designed and how KVM switches manage USB communication.
1. The Role of DDM Technology
ConnectPRO’s patented DDM technology ensures that each connected computer always “sees” a keyboard and mouse, even when the user switches to another system. This eliminates the lag and re-enumeration delays common in traditional USB KVM switches.
However, because DDM works by emulating and mapping standard HID (Human Interface Device) commands, some keyboards that rely on non-standard protocols may not translate properly. As a result, certain advanced features may not function—or the keyboard may not work at all.
2. Advanced Keyboards with Proprietary Functions
Many modern keyboards, especially certain gaming models, include features that go beyond the USB HID standard, such as:
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Custom macro programming
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Per-key RGB lighting controls
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Extra function keys
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Built-in USB hubs or pass-through ports
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Ultra-high polling rates (e.g., 1000 Hz)
Since these rely on proprietary communication with the computer, they may not align correctly with the standardized signals the ConnectPRO KVM emulates through DDM.
Additionally, these features may require more memory than the maximum memory capacity of the IC chips of the DDM to process. This can cause the keyboard to not work correctly with the KVM switch.
3. Power Consumption Challenges
Some keyboards require more power than a KVM port is designed to deliver—especially when RGB lighting or USB hub ports are in use. ConnectPRO KVMs provide stable power within the USB specification, but keyboards that exceed this may fail to initialize or may lose functionality when connected through the switch.
4. Firmware and Software Dependencies
Keyboards that depend heavily on custom drivers may not behave predictably when routed through a KVM. These drivers often expect a direct USB handshake, which can conflict with how the DDM in a ConnectPRO KVM switch manages device emulation.
5. Solutions and Workarounds
If you encounter keyboard issues with a ConnectPRO KVM switch, there are several possible solutions:
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Use the USB hub port on the KVM (if available) for direct pass-through instead of the dedicated “keyboard” port.
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Disable extra features such as some programmable features or built-in USB hubs to reduce power draw and simplify communication.
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Update firmware on both the keyboard and the computer drivers.
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Try a simpler keyboard for compatibility, especially in mission-critical environments where reliability is more important than advanced features.
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Consult ConnectPRO’s compatibility list or contact their support team, as they can provide guidance on specific models.
Conclusion
ConnectPRO KVM switches are engineered for professional-grade reliability, and their DDM technology offers seamless switching of the peripheral devices without the delays of traditional KVMs. However, some highly specialized keyboards may not function properly due to their reliance on proprietary protocols, higher power needs, or unique firmware interactions. By understanding these limitations and applying practical workarounds, users can ensure smooth operation while still benefiting from ConnectPRO’s reliable KVM solutions.