| NPU | Support 5.0Tops computing power |
| HDMI | HDMI 2.1 interface (Optional), supporting up to 4K resolution |
| USB OTG | 1 MicroUSB OTG interface, built-in pin header |
| Pilot lamp | Red standby indicator and green working indicator light |
| Thickness | 9mm |
| Tiltle | Smart IoT K-A311D Motherboard with 5T computing power 4GB of RAM and 128GB of storage |
| TF Card | Self-elastic TF card socket, supports 256GB TF card |
| Button | Burn button and power button |
| Size | 135mm* 90mm |
| ROM | Standard 16GB EMMC, up to 128GB |
| Line Output | Left and right channel stereo line output |
| USB Host | 2 external USBs (USB 3.0x 1 and USB 2.0x 1), 7 built-in USBs (USB 3.0 and USB 2.0x 6) |
| 4G/3G | 1-way MiniPCI-E4G interface, can expand 4G/3G modules, onboard self-ejecting Micro-SIM card holder |
| RAM | Standard 2GB LPDDR4, 4GB optional |
| MIC Input | Differential MIC input |
| LVDS | 30Pin dual-channel LVDS interface, supporting up to 1080P resolution |
| Headphone/ MIC | Four-stage 3.5mm headphone/ microphone socket |
| Humidity | 0%~95%(No condensation) |
| Bluetooth | High-performance Bluetooth, supports BT V4.0 |
| Amplifier Output | 8 Ohm 6W Dual Audio Amplifier Output |
| POE | 1-way POE power receiving interface |
| Structure compatible | Compatible with K-A311D、K-S905、K-3655structure and interchangeable |
| RTC | Low power consumption RTC circuit with CR1220 battery |
| WiFi | High-performance WiFi, support 802.11 b/g/n/ac |
| CPU | Amlogic A311D, quad-core Cortex-A73+ dual-core Cortex-A53 up to 2.2GHz |
| Ethernet | 1-way 10/100/1000Mbps adaptive Ethernet |
| GPU | Mali-G52 MP4 |
| 12C | 2-way I2C interface |
| Payment Terms | T/T |
| Supply Ability | 200+/day |
| Packaging Details | |
| Backlight | 1-way Backlight control interface, supports switch and brightness adjustment |
| DC input | 12V DC socket, supports 9V-15V wide voltage input |
| Delivery Time | 5-8 work days |
| Serial ports | 1-way TTL/RS485, 2-way TTL/RS232, 4-way TTL/RS232 expansion |
| Android system | Recommend Android 9.0 |
| MIPI | 31Pin FPC MIPI-DSI interface, supporting up to 1920* 1200 resolution (Choose one from MIPI and LVDS) |
| Operating temperature | -20℃~70℃ |
| GPIO | 8-way GPIO signals |
| Infrared | Infrared receiving pin header |
| Brand Name | |
| Model Number | K-A311D Mainboard |
| Place of Origin | China |
View Detail Information
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Product Specification
| NPU | Support 5.0Tops computing power | HDMI | HDMI 2.1 interface (Optional), supporting up to 4K resolution |
| USB OTG | 1 MicroUSB OTG interface, built-in pin header | Pilot lamp | Red standby indicator and green working indicator light |
| Thickness | 9mm | Tiltle | Smart IoT K-A311D Motherboard with 5T computing power 4GB of RAM and 128GB of storage |
| TF Card | Self-elastic TF card socket, supports 256GB TF card | Button | Burn button and power button |
| Size | 135mm* 90mm | ROM | Standard 16GB EMMC, up to 128GB |
| Line Output | Left and right channel stereo line output | USB Host | 2 external USBs (USB 3.0x 1 and USB 2.0x 1), 7 built-in USBs (USB 3.0 and USB 2.0x 6) |
| 4G/3G | 1-way MiniPCI-E4G interface, can expand 4G/3G modules, onboard self-ejecting Micro-SIM card holder | RAM | Standard 2GB LPDDR4, 4GB optional |
| MIC Input | Differential MIC input | LVDS | 30Pin dual-channel LVDS interface, supporting up to 1080P resolution |
| Headphone/ MIC | Four-stage 3.5mm headphone/ microphone socket | Humidity | 0%~95%(No condensation) |
| Bluetooth | High-performance Bluetooth, supports BT V4.0 | Amplifier Output | 8 Ohm 6W Dual Audio Amplifier Output |
| POE | 1-way POE power receiving interface | Structure compatible | Compatible with K-A311D、K-S905、K-3655structure and interchangeable |
| RTC | Low power consumption RTC circuit with CR1220 battery | WiFi | High-performance WiFi, support 802.11 b/g/n/ac |
| CPU | Amlogic A311D, quad-core Cortex-A73+ dual-core Cortex-A53 up to 2.2GHz | Ethernet | 1-way 10/100/1000Mbps adaptive Ethernet |
| GPU | Mali-G52 MP4 | 12C | 2-way I2C interface |
| Payment Terms | T/T | Supply Ability | 200+/day |
| Packaging Details | Backlight | 1-way Backlight control interface, supports switch and brightness adjustment | |
| DC input | 12V DC socket, supports 9V-15V wide voltage input | Delivery Time | 5-8 work days |
| Serial ports | 1-way TTL/RS485, 2-way TTL/RS232, 4-way TTL/RS232 expansion | Android system | Recommend Android 9.0 |
| MIPI | 31Pin FPC MIPI-DSI interface, supporting up to 1920* 1200 resolution (Choose one from MIPI and LVDS) | Operating temperature | -20℃~70℃ |
| GPIO | 8-way GPIO signals | Infrared | Infrared receiving pin header |
| Brand Name | Model Number | K-A311D Mainboard | |
| Place of Origin | China | ||
| High Light | Video Advertising Android Mother Board ,4 USB Android Mother Board ,EMMC 8G windows motherboard | ||
K-A311D Smart IoT Motherboard
The K-A311D Smart IoT Motherboard is the flagship of the K-series, engineered for the most demanding AI-powered IoT applications. Powered by the Amlogic A311D hexa-core processor (quad Cortex-A73 @ 2.2GHz + dual Cortex-A53) with a built-in 5 TOPS NPU — the highest AI acceleration in the lineup — this board delivers desktop-class performance for real-time object detection, facial recognition, and complex neural networks. What sets the K-A311D apart is its MIPI-CSI camera interface for superior image capture, 6× configurable serial ports, USB 3.0, Gigabit Ethernet with PoE, and wide-temperature operation from -20°C to 70°C. With support for up to 4GB LPDDR4 memory and Android 9.0, the K-A311D is purpose-built for AI-powered vending machines, smart interactive systems, and advanced industrial control applications where performance and AI capability are non-negotiable.
5 TOPS NPU — Highest AI Acceleration in K-Series: 5× more powerful than the K-3566's 1 TOPS NPU — run multiple AI models simultaneously, process high-resolution video streams, and handle complex neural networks with ease, all on-device without cloud dependency.
2.2GHz Cortex-A73 Cores — Desktop-Class Performance: The quad Cortex-A73 cores deliver significantly higher single-core performance than Cortex-A55 or Cortex-A53 — faster AI inference, smoother UI, and better multitasking for the most demanding applications.
MIPI-CSI Camera Interface: Dedicated 24-pin MIPI-CSI input delivers superior image quality and lower latency than USB cameras — essential for AI-powered visual applications where every frame matters.
6× Configurable Serial Ports: 1× TTL/RS-485, 2× TTL/RS-232, and 4× extended TTL/RS-232 — flexible connectivity for payment systems, sensors, and industrial controllers.
PoE-Ready Gigabit Ethernet: 10/100/1000M Ethernet with PoE support — fast networking and simplified cabling for retail and industrial deployments.
Built for AI Workloads, Not Just Specs: The 5 TOPS NPU paired with 2.2GHz Cortex-A73 cores means the K-A311D handles complex AI models that other boards can't — real-time object detection, multi-person tracking, and video analytics all run simultaneously without bottleneck.
MIPI-CSI — Capture Quality That USB Can't Match: USB cameras are convenient, but MIPI-CSI delivers higher resolution, lower latency, and better synchronization — the difference between a system that occasionally misidentifies products and one that's accurate every time.
The Board That Grows With Your AI Needs: As AI models become more complex, the K-A311D's 5 TOPS NPU ensures your hardware keeps up. Invest in the board that won't be obsolete in two years when the next generation of AI models demands more compute.
Power Through Complex Applications: From AI-powered vending machines that recognize products in real-time to interactive kiosks with live video analytics — the K-A311D delivers the processing power and camera connectivity that entry-level boards simply cannot provide.
| Item | Details |
|---|---|
| Packaging | Anti-static bag + foam padding + industrial carton |
| MOQ | 1 piece (sample order), 100+ for volume pricing |
| Lead Time | 3–5 working days for samples; 15–20 working days for bulk orders |
| Shipping | DHL, FedEx, UPS, or by sea (customer's choice) |
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Company Details
Business Type:
Manufacturer
Year Established:
2016
Total Annual:
1000000-1500000
Employee Number:
>100
Ecer Certification:
Site Member
Shenzhen Jupin Technology Co., Ltd. ("Jupin" for short) is a domestic high-tech enterprise focusing on the development, production and sales of iris recognition and face recognition technology products. Main products: iris recognition access control, iris recognition attendance machine, fa... Shenzhen Jupin Technology Co., Ltd. ("Jupin" for short) is a domestic high-tech enterprise focusing on the development, production and sales of iris recognition and face recognition technology products. Main products: iris recognition access control, iris recognition attendance machine, fa...
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