Hardware Use

📄️ Hardware Information

Chip Block Diagram

📄️ MicroSD Card Slot

The Radxa CM4 IO Board features a built-in MicroSD card slot that is compatible with MicroSD, MicroSDHC, and MicroSDXC cards. It can be used as a system boot device or for expanded storage.

📄️ UFS Module Slot

The Radxa CM4 IO Board features an onboard UFS (Universal Flash Storage) module slot, supporting high-capacity storage from 64GB to 1TB. Ideal for users who require fast read/write speeds and convenient installation, it can be used as either a system boot drive or expanded storage.

📄️ M.2 M Key 2280 Slot

The Radxa CM4 IO Board features an onboard M.2 M Key 2280 slot, ideal for users who require high read/write speeds and large storage capacity. It can be used either as a system boot drive or for expanded storage.

📄️ HDMI 2.1 Interface

The Radxa CM4 IO Board features an onboard HDMI 2.1 interface that can connect to displays, TVs, and other devices for video output, supporting up to 4K@120fps.

📄️ Ethernet (with PoE Support) Interface

The Radxa CM4 IO Board features an onboard Gigabit Ethernet interface with PoE (Power over Ethernet) support. Note that PoE functionality requires the use of a PoE HAT.

📄️ USB Type-A / C Ports

The Radxa CM4 IO Board comes with the following USB ports:

📄️ MIPI CSI Interface

The Radxa CM4 IO Board features one 4-lane MIPI CSI interface and two 2-lane MIPI CSI interfaces, which can be used to connect CSI cameras.

📄️ MIPI DSI Interface

The Radxa CM4 IO Board features one 4-lane MIPI DSI interface for connecting DSI displays.

📄️ 40-Pin GPIO Interface

The Radxa CM4 IO Board features an onboard 40-pin GPIO interface, providing highly flexible hardware expansion capabilities.

📄️ Fan Interface

The Radxa CM4 IO Board features an onboard fan interface for connecting an external fan to cool the board.

📄️ 3.5mm Headphone Jack

The Radxa CM4 IO Board features a built-in 3.5mm 4-pole headphone jack that supports both audio input and output.

📄️ RTC Interface

The Radxa CM4 IO Board comes with an onboard RTC (Real-Time Clock) interface for connecting a button cell battery.

📄️ Other Interfaces

The Radxa CM4 IO Board provides multiple functional interfaces, allowing users to choose the features they need.