How to Connect a Mechanical Keyboard to Xiaomi Phone via USB OTG

Typing long documents on a touchscreen is frustrating. Xiaomi phones support USB OTG (On-The-Go), which lets you connect a physical keyboard — including mechanical keyboards — for a dramatically better typing experience.

Check OTG Support

Most Xiaomi phones from the Xiaomi 11 series onwards support USB OTG. To verify:
1. Go to Settings → Additional settings → OTG connection.
2. Or check the phone's specifications page on mi.com under ""Connectivity.""

Method 1: Wired Mechanical Keyboard via USB OTG

What you need: USB-C to USB-A adapter (or USB-C to USB-C cable if keyboard has USB-C)

1. Plug the OTG adapter into your Xiaomi phone's USB-C port.
2. Connect the keyboard's USB cable to the adapter.
3. HyperOS detects the keyboard automatically — no driver installation needed.
4. Open any text field and start typing.

Hub option: Use a USB-C hub to connect keyboard + mouse + USB storage simultaneously. Xiaomi 15 Ultra supports USB 3.2 Gen 2 for high-speed hub connectivity.

Method 2: Bluetooth Mechanical Keyboard

1. Put your keyboard into Bluetooth pairing mode (usually Fn + a pairing key).
2. On your Xiaomi phone, go to Settings → Bluetooth and turn it on.
3. Tap the keyboard name when it appears in available devices.
4. Pair and connect — works instantly.

Recommended for: Mobile productivity setups where you want to type without a cable.

Method 3: Desktop Mode with External Keyboard

Pair the keyboard with Desktop Mode on supported Xiaomi phones:
1. Connect phone to external monitor via USB-C → HDMI cable.
2. Enable Desktop Mode (appears automatically or via developer options).
3. Use keyboard + mouse for a full desktop-like experience.

Best Uses for External Keyboard on Xiaomi

Popular compatible keyboards: Keychron K3 Pro (Bluetooth), Nuphy Air60 V2, Logitech MX Keys Mini.

The combination of Xiaomi's large AMOLED display and an external mechanical keyboard creates a surprisingly capable mobile workstation.