In comparing the latency of wired, dongle (wireless via a USB receiver), and Bluetooth keyboards, here’s a summary:

1. Wired Keyboard Latency:
   • Latency: Typically has the lowest latency.
   • Advantages: Direct, physical connection to the computer results in fast and reliable response times.
   • Considerations: Cables may limit mobility, but they provide a consistent and stable connection, making wired keyboards popular for gaming and high-performance applications.
2. Dongle (Wireless via USB Receiver) Keyboard Latency:
   • Latency: Generally low, often comparable to wired keyboards.
   • Advantages: Offers more mobility than wired keyboards, as the wireless dongle communicates directly with the keyboard. Latency is often suitable for gaming and other demanding tasks.
   • Considerations: Requires a USB port for the dongle, and the range might be affected by interference. Some gaming keyboards come with proprietary wireless technology for reduced latency.
3. Bluetooth Keyboard Latency:
   • Latency: May have higher latency compared to wired and dongle connections.
   • Advantages: Offers wireless connectivity without the need for an additional dongle. Suitable for general typing and office use.
   • Considerations: Bluetooth connections can have higher latency, making them less ideal for fast-paced activities like gaming. However, improvements in Bluetooth technology have reduced latency in recent years.

Latency Comparison:

• Wired > Dongle > Bluetooth: In general, wired keyboards tend to have the lowest latency, followed by dongle-connected wireless keyboards, with Bluetooth keyboards having potentially higher latency.

Use Case Considerations:

• Gaming: Wired and dongle-connected keyboards are often preferred for gaming due to their lower latency, ensuring quick response times in fast-paced games.
• Office/Productivity: Bluetooth keyboards are convenient for general office use, offering wireless freedom without requiring an additional USB dongle. The latency may not be a significant concern for typical typing tasks.

When choosing a keyboard, consider your specific needs and use cases. Gamers or those requiring minimal latency may prefer wired or dongle-connected keyboards, while users prioritizing wireless convenience in non-critical applications might opt for Bluetooth keyboards.