KVM Switch · Tutorial Overview
Applies to: JUXI Technology KVM&HUB&TTL dual-computer keyboard/mouse switch (USB 2.0) Version v1.0 (2026-10-14) | The tutorial is split by functional module — read the parts you need
Find by Module
| What I want to do | Read |
|---|---|
| Get the device running first | This page → "Quick Start" |
| Switch keyboard/mouse & peripherals between two computers | 01 - Switching Between Two Computers |
| Use it as a USB HUB (one-to-three) | 02 - HUB Function (One to Three) |
| Connect via phone Bluetooth, send/receive data | 03 - Bluetooth |
| Wire the 6-pin TTL serial port, view data on a PC | 04 - TTL Serial Port (Wireless Serial) |
| Learn about the 10-pin expansion header | 05 - 10-Pin Expansion Header |
| Control a dev board / host without a monitor | 06 - Headless Host (Capture Card + OBS) |
| FAQ and precautions | 07 - FAQ and Precautions |
Product in One Sentence
A 2-in 3-out USB keyboard/mouse switch: one keyboard and mouse (plus peripherals) switch between two computers at the press of a button; built-in 3-port USB HUB; plus a wireless serial feature — connect a dev board's or sensor's serial port to the 6-pin header and the data is passed through to both the PC serial port and your phone via Bluetooth.
Interfaces at a Glance
| Location | Name | Description |
|---|---|---|
| Left / right side | PC1 / PC2 ports (Type-C) | Connect the two computers |
| Bottom | USB-A × 3 | Keyboards/mice, USB drives, printers, etc. — switched as a group |
| Top | Power port (Type-C) | Auxiliary power (when host power is insufficient) |
| Middle | Switch button | Short press to switch; long press for Bluetooth mode |
| Top-left | IR receiver | Works with the IR remote control |
| Bottom-right | TTL serial port (6-pin) | Wireless serial feature (see 04) |
| Bottom-right | 10-pin header | Expansion interface (see 05) |
| Top-right | Bluetooth module (built-in) | Wireless serial feature (see 03) |
Indicator LEDs: PC1/PC2 (current channel) | Power | UART serial (blinks during transmission) | Bluetooth (lights up after long press)
Quick Start (5 Minutes)
- Computer A → Type-C cable → PC1 port; Computer B → PC2 port (one computer only is also fine — then it is simply a USB HUB).
- Plug the keyboard/mouse (or wireless receiver) into any USB-A port.
- Press the switch button and check the PC1/PC2 indicator LEDs to confirm which computer is connected.
- If the host's power is insufficient, also connect Type-C power to the power port.
(Illustration: tutorial asset 01 – Function layout)
Two Important Notes
- This product does not switch video: each computer uses its own monitor. For a host without a monitor, use the capture-card solution (see 06).
- This product is USB 2.0: perfectly adequate for keyboards/mice, printers, USB drives and dongles; for high-speed storage, connect directly to the computer.
(For details on each functional module, click the corresponding entry in the "Find by Module" table above.)