Add Bluetooth to a Mechanical Keyboard with a USB Adapter

By Keychron | Custom Mechanical Keyboards for Mac, Windows ... | Published: 2026-10-19

Category: How-to Guides

Learn how to use a USB Bluetooth adapter to add wireless connectivity to your mechanical keyboard. Simple steps, common mistakes, and honest trade-offs explained.

Quick answer

Plug the adapter into a free USB port on your computer, pair your keyboard via Bluetooth settings, and verify the connection. Expect slight input lag compared to a wired connection.

Why use a USB Bluetooth adapter?

Most mechanical keyboards are wired. A USB Bluetooth adapter gives you wireless freedom without replacing your keyboard. It's a cheap, non-permanent solution that works with any keyboard that has Bluetooth built-in or a detachable cable.

Trade-offs to know before you start

Bluetooth adds a small but measurable delay (latency). For typing or office work, it's fine. For competitive gaming, you may notice the lag. Also, some adapters interfere with Wi-Fi or other USB 3.0 devices if plugged into a front port.

Steps to set up your USB Bluetooth adapter

1. Insert the adapter: Plug the USB Bluetooth adapter into an available USB-A port on your computer. Avoid USB hubs if possible — connect directly to the computer for a stable signal. Using a front USB port may cause interference; prefer a rear port.
2. Enable pairing mode on your keyboard: Turn on your mechanical keyboard and activate its Bluetooth pairing mode. This usually involves holding a dedicated key or switch for a few seconds until the LED blinks. If the keyboard doesn't enter pairing mode, check the manual — some models require a specific key combination.
3. Pair via computer settings: Open your computer's Bluetooth settings, scan for devices, and select your keyboard from the list. Confirm the pairing code if prompted. If the keyboard doesn't appear, move it closer to the adapter — distance and obstacles reduce signal.
4. Test and adjust: Type a few sentences to confirm the connection is stable. If you experience dropouts or lag, try moving the adapter to a different USB port or reducing distance to the keyboard. Persistent lag may be unavoidable — Bluetooth is not as responsive as a wired connection.

Product note

Keychron USB Bluetooth Adapter for Windows PC: No discount codes can be used for Bluetooth adapters. Please drop your email on 'Notify Me When Available' if the product model is out of stock. Plan ahead if the adapter is out of stock — you cannot use a promo code, so sign up for restock alerts early.
Keychron USB Bluetooth Adapter for Windows PC