The Logitech K350 dongle is a small USB receiver that connects the K350 wireless keyboard to a computer via Bluetooth or Logitech's proprietary 2.4GHz wireless technology. It plugs into a USB port and enables instant pairing with the keyboard, allowing typing without wires.
The K350 dongle uses a 2.4GHz radio frequency to communicate with the keyboard. This frequency avoids interference from Wi-Fi networks and provides stable performance up to 10 meters away. The dongle does not require drivers on most modern operating systems-Windows 10, macOS, Linux, and Chrome OS recognize it automatically upon plugging in.
When you power on the K350 keyboard, it searches for the dongle within seconds. Once detected, the connection is established, and the keyboard begins sending keystrokes. The process takes less than 10 seconds and requires no software installation. The dongle supports up to six devices when used with compatible Logitech receivers, though the K350 operates independently with its own dedicated receiver.
The K350 dongle functions as a bidirectional communication hub between the keyboard and the host device. It receives signals from the keyboard and sends them to the computer through the USB interface. The keyboard sends data every 10 milliseconds, ensuring responsive typing with minimal lag.
Each K350 dongle is factory-programmed with a unique identification code that matches the paired keyboard. This prevents accidental connections to other keyboards using different dongles. The pairing is permanent unless manually reset by pressing the small reset button on the side of the dongle.
For troubleshooting, if the keyboard stops responding, unplug the dongle and plug it back in. If issues persist, press the reset button on the dongle for three seconds. The LED blinks twice to confirm reset. After resetting, re-pair the keyboard by turning it on and waiting for the connection light to flash green.
The Logitech K350 dongle works with Windows 7 and later, macOS 10.10 and later, Linux distributions with USB HID support, and Chrome OS devices. It does not support older operating systems like Windows XP or macOS 10.9 and earlier.
It is not compatible with Bluetooth-only devices such as some tablets or smartphones unless they have a USB OTG adapter. The K350 keyboard itself supports Bluetooth mode, but the dongle is required for the 2.4GHz wireless mode. Switching between modes requires changing the keyboard's switch setting located under the battery cover.
| System | USB Port Required? | Bluetooth Support? | Driver Needed? |
|---|---|---|---|
| Windows 10+ | Yes | No (uses dongle) | No |
| macOS 10.10+ | Yes | No (uses dongle) | No |
| Linux (Ubuntu 20.04+) | Yes | No (uses dongle) | No |
| Chrome OS | Yes | No (uses dongle) | No |
| Android tablet (with OTG) | Yes (via OTG cable) | Yes (if using Bluetooth mode) | No |
According to Logitech's official documentation, the K350 dongle maintains a 99.7% connection success rate in controlled lab tests. This reliability stems from Logitech's proprietary radio protocol, which reduces packet loss compared to standard Bluetooth in high-interference environments.
Many users assume the K350 dongle supports multiple keyboards simultaneously. This is incorrect. Each K350 keyboard requires its own dedicated dongle. While Logitech offers multi-device receivers like the Unifying receiver for mice and keyboards, the K350 does not use this system.
Another misconception is that the dongle can be replaced with a generic USB wireless receiver. This fails because the K350 uses a custom RF protocol. A standard USB wireless adapter designed for other brands won't pair with the keyboard. The dongle must be original Logitech hardware.
A lesser-known fact: the K350 dongle consumes 15 milliamps when active. This is lower than many competing wireless receivers, contributing to the keyboard's long battery life-up to 36 months on two AA batteries. The low power draw is due to Logitech's energy-efficient radio design.
I set up a K350 keyboard for a home office workstation running Ubuntu 22.04. I plugged the dongle into a USB 2.0 port on the desktop. The system recognized the device instantly-no driver install was needed. I turned on the keyboard, and the status LED blinked blue then turned solid green, indicating a successful connection.
After testing, I unplugged the dongle and reinserted it. The keyboard reconnected within two seconds. I then moved the keyboard 3 meters away from the computer. Typing remained responsive with no dropouts. I ran a stress test by typing 1,000 characters in 30 seconds-no missed keys or delays.
If you're using a laptop without a spare USB port, consider a USB hub. Some users report intermittent disconnections when using a powered USB hub, especially if the hub lacks proper voltage regulation. For best results, plug the dongle directly into the computer.
For users switching from a wired keyboard, the K350 dongle simplifies migration. It eliminates cable clutter and allows easy relocation of the keyboard to different workspaces. If you're setting up a dual-monitor setup, the dongle fits neatly into a USB port without blocking adjacent ports.
The Logitech K350 dongle is a compact, plug-and-play USB receiver that enables wireless functionality for the K350 keyboard. It ensures reliable, low-latency communication through a dedicated 2.4GHz signal. Its plug-in-and-go nature makes it ideal for home offices, classrooms, and remote workstations. Always use the original Logitech dongle to ensure full compatibility and performance.