Can You Use a Logitech K520 Without the Dongle?
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Short answer: no. The Logitech K520 is a full-size 2.4 GHz wireless keyboard with no Bluetooth and no cable port. It needs a Logitech USB receiver. The standalone K520 uses a Unifying receiver, so a lost dongle can be replaced and paired in a few minutes.
K520 connection facts
| Feature | Logitech K520 |
|---|---|
| Connection | 2.4 GHz through a USB receiver |
| Receiver | Logitech Unifying receiver (standalone K520) |
| Bluetooth | No |
| Wired mode | No |
| Power | 2 × AA batteries; Logitech quotes up to 3 years |
| Layout | Full size with number pad, media and shortcut keys, spill-resistant |
Step 1: Check your receiver (K520 vs MK520 combo)
Many people own the K520 as part of the MK520 keyboard-and-mouse combo. What matters is the receiver it came with:
| Receiver | Works with the K520? |
|---|---|
| Unifying receiver (orange star logo) | Works. One receiver can hold up to six Unifying devices, so a receiver from another Logitech mouse or keyboard can be reused. |
| Logi Bolt receiver (green "Bolt" logo) | Does not work. Bolt and Unifying are not compatible. |
| Nano receiver with no logo (from a combo set) | Usually locked to the devices it was sold with and can't be re-paired. |
If your K520 came in a combo whose receiver had no Unifying logo, note the model number from the label under the keyboard and ask Logitech support which replacement fits before buying anything.
Step 2: Pair the K520 to a Unifying receiver
- Plug the Unifying receiver into a USB port on your computer (directly on the PC, not a hub, for the first pairing).
- Install Logitech's pairing software. Logitech now recommends Logi Options+ on Windows and macOS. The older Logitech Unifying Software is still on Logitech's support site but no longer maintained. On Linux, the free tool Solaar does the same job.
- Start pairing (Unifying Software: open it and click Next; Logi Options+: add a device and choose the Unifying receiver option).
- When asked, slide the K520's power switch off and back on. Fresh batteries make a difference here.
- Type a few letters in the test box, then finish.
Pairing is a one-time job. After that the keyboard connects automatically whenever the receiver is plugged in.
K520 not connecting? Common fixes
| Problem | What to try |
|---|---|
| Keyboard dead, no response | Replace both AA batteries and check the on/off switch. |
| Pairing software doesn't see the receiver | Try another USB port directly on the computer and restart the software. |
| Pairing fails or times out | Hold the K520 within 30 cm of the receiver, switch it off and on when prompted, and try again. |
| Lag or missed keys | Move the receiver away from USB 3.0 ports, metal cases and Wi-Fi routers, or use a short USB extension cable to bring it closer. |
| Some keys don't work | See our guide on how to unlock a keyboard (Num Lock, Fn Lock and filter keys). |
Need a keyboard with no dongle?
If the real goal is to avoid a receiver (a tablet, a laptop with few USB ports, a smart TV that only supports Bluetooth), this keyboard isn't the right one. Logitech's Bluetooth models connect with no dongle, for example the compact K380 and its successor Pebble Keys 2 K380s, or full-size models such as the Signature K650 (Bluetooth or Bolt). Our guide on how to connect a wireless keyboard covers Bluetooth pairing on Windows, Mac and Android.
FAQ
Does the Logitech K520 have Bluetooth?
No. It only connects through a Logitech USB receiver.
Can I use the K520 with a USB cable?
No, it has no cable port.
Can I pair the K520 to my Logitech mouse's receiver?
Yes, if that receiver has the orange Unifying logo. One receiver can hold up to six devices.
Does the K520 work with a Logi Bolt receiver?
No. Bolt is not compatible with Unifying devices.