
1. Product Introduction
Micro HDMI to HDMI Adapter Compatible with Raspberry Pi 5/4B Easier Connection Supports Dual 4K Output RTC Battery Input
This product is an expansion board specifically designed for the Raspberry Pi 5 and Raspberry Pi 4B, providing conversion functionality for USB-C and HDMI interfaces. It also features an onboard CR2032 battery connector, allowing users to easily connect an RTC battery to the Raspberry Pi 5. This product is ideal for embedded development, industrial control, and other scenarios, offering a flexible and reliable hardware interface conversion solution for expanding the applications of Raspberry Pi 5 and 4B.
2. Product Features
- Compatible with Raspberry Pi 5 and Raspberry Pi 4B, supports dual HDMI 4K output.
- Onboard Type C power interface.
- Onboard CR2032 battery connector and included cable, convenient for connecting an RTC battery to the Raspberry Pi 5.
Product size

Resource Overview
- USB-C Connector: USB-C power input.
- Dual HDMI Connectors: Connect to HDMI displays.
- Dual Micro HDMI Ports: Connect to the Raspberry Pi's HDMI interfaces.
- USB-C Male Connector: Connects to the Raspberry Pi's USB-C power interface.
- CR2032 Battery Connector: Directly insert a CR2032 battery here.
- CR2032 Battery Output Connector: Use the cable to connect to the J5 battery connector on the Raspberry Pi 5.
Product Usage
The installation and usage diagram of the product is shown in
WIKI
Accessories List
①RPi Connector Adapter x1
②connector cable 10cm x1
