ToT-3399E RK3399 4K Dual-Screen Android Smart Terminal Controller Board

Industrial-Grade PCB Design

The ToT-3399E uses an immersion-gold PCB process to improve connector durability and corrosion resistance. Four mounting points provide secure installation inside commercial and industrial terminal equipment.

Stable 7 × 24-Hour Operation

The board is designed for continuous operation under suitable power, cooling and environmental conditions, making it suitable for unattended kiosks, interactive displays and smart terminals.

Six-Core Server-Class Processor

The Rockchip RK3399 combines two high-performance Cortex-A72 cores with four power-efficient Cortex-A53 cores. This heterogeneous six-core architecture provides strong multitasking performance and efficient power management.

Android 7.1 and Android 11

Android 7.1 and Android 11 system configurations are available for compatibility with existing commercial software and modern Android applications. Linux and OpenHarmony adaptation may also be supported according to project requirements.

Mali-T860 Graphics Processor

The integrated Mali-T860 GPU provides efficient graphics rendering and multimedia acceleration for digital signage, interactive interfaces, high-definition video and commercial display applications.

4K at 60 Hz Multimedia Support

The ToT-3399E supports video decoding at resolutions up to 3840 × 2160 and HDMI 2.0a output at up to 4K at 60 Hz, providing clear and detailed image output for compatible displays.

Multiple Display Interfaces

HDMI, LVDS and eDP interfaces support various standard LCD panels, customized bar displays and cropped screens. This flexibility simplifies integration into different commercial terminal designs.

Independent Dual-Screen Display

Compatible display combinations can show different content on two screens simultaneously, supporting operator displays, customer-facing screens and interactive dual-screen systems.

Independent Dual-Touch Support

Compatible dual-screen configurations can support independent touch control for each display, depending on the selected touch panels, firmware and interface configuration.

Mainstream Touch-Screen Compatibility

The board supports compatible infrared, optical, capacitive and touch-film solutions. Driver-free HID touch screens can provide plug-and-play operation without complicated debugging.

13MP MIPI Camera Support

One 30-pin FPC MIPI camera interface supports compatible camera modules with resolutions up to 13 megapixels for facial recognition, image capture, identity verification and visual applications.

Seven USB Interfaces

• 1 × USB 3.0 OTG interface
• 1 × USB 3.0 HOST interface
• 5 × USB 2.0 interfaces
• Camera and scanner support
• USB storage and peripheral support

Industrial Serial Expansion

• 3 × RS232 serial interfaces
• 1 × TTL serial interface
• 1 × RS485 industrial interface
• 1 × DEBUG interface
• 4 × GPIO interfaces
• 1 × ADC interface

Gigabit Ethernet Connectivity

The integrated Ethernet interface supports 10/100/1000 Mbps auto-negotiation, providing stable high-speed wired networking for content delivery, remote management and cloud communication.

Wi-Fi, Bluetooth and 4G

Built-in Wi-Fi provides wireless network access. Bluetooth 4.2 is available as an optional configuration, while the PCI-E interface supports compatible 4G communication modules.

High-Power Stereo Audio

The integrated stereo amplifier supports up to 2 × 20 W with 4 Ω speakers or 2 × 10 W with 8 Ω speakers. Microphone input and headphone output are also available.

Android System Customization

Customized Android functions, hardware-control APIs and reference code can be provided to support upper-layer APP development, peripheral integration and project-specific terminal deployment.

Flexible System Upgrades

Local firmware upgrades are supported through a TF card or USB flash drive, simplifying software maintenance and system deployment in commercial terminal projects.