# Libre Computer Alta

> Libre Computer Alta (AML-A311D-CC) — Amlogic A311D hexa-core SBC with 4GB LPDDR4, 5 TOPS NPU, Mali-G52 GPU, 4× USB 3.0, Gigabit Ethernet with PoE, and 4K HDR HDMI 2.0 in a Pi-compatible form factor.

## Quick Facts

- **Brand:** Libre Computer
- **Board Type:** Single Board Computer
- **Price:** ~$90
- **Product Readiness:** consumer
- **CPU:** Amlogic A311D
- **CPU Architecture:** ARM Cortex-A73,Cortex-A53
- **CPU Cores:** 6
- **RAM:** 4GB LPDDR4
- **Flash:** MicroSD,eMMC 5.x
- **USB:** 4× USB 3.0 Type-A,USB-C 2.0 OTG
- **Power:** 5V/3A USB-C
- **Operating Voltage:** 3.3V
- **SD Card:** MicroSD UHS SDR104

## Connectivity

- **Ethernet:** Gigabit

## Open Source

- **Firmware:** No
- **Schematics:** Yes
- **PCB Layout:** No

## Compatible Firmware

Ubuntu, Debian, Armbian, Mainline Linux

## Use Cases

- AI/ML Inference
- Media Center
- Home Server
- IoT Gateway
- Edge Computing
- Single Board Computing

## Components

- **Amlogic A311D** (SoC): 12nm hexa-core SoC with 4× Cortex-A73 + 2× Cortex-A53 and 5 TOPS NPU — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdn.odroid.com%2FS905D3%2FODROID-C4%2FAmlogic_A311D_Datasheet_V0.4_Provisional.pdf&ref=openhardware.directory&product=libre-computer-alta&source=md-export)
- **Mali-G52 MP4** (GPU): OpenGL ES 3.2, Vulkan 1.1, OpenCL 2.0 — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdeveloper.arm.com%2FProcessors%2FMali-G52&ref=openhardware.directory&product=libre-computer-alta&source=md-export)
- **Amlogic NPU** (NPU): Integrated NPU for AI/ML inference workloads — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdn.odroid.com%2FS905D3%2FODROID-C4%2FAmlogic_A311D_Datasheet_V0.4_Provisional.pdf&ref=openhardware.directory&product=libre-computer-alta&source=md-export)
- **Amlogic AVE10** (Video Decoder): H.265/H.264/VP9 4K60 decode, H.264 1080p60 encode — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdn.odroid.com%2FS905D3%2FODROID-C4%2FAmlogic_A311D_Datasheet_V0.4_Provisional.pdf&ref=openhardware.directory&product=libre-computer-alta&source=md-export)

## Protocols

- **HDMI 2.0**
- **USB 3.0**
- **USB 2.0**
- **I2C**
- **SPI**
- **UART**
- **MIPI CSI**
- **MIPI DSI**
- **IR**

## Description

# Libre Computer Alta (AML-A311D-CC)

The Alta is Libre Computer's flagship single board computer, powered by the Amlogic A311D SoC featuring a big.LITTLE configuration with four Cortex-A73 cores at 2.016GHz and two Cortex-A53 cores at 1.8GHz. It includes a 5 TOPS neural processing unit for AI/ML inference workloads.

## Key Features

- **Hexa-core CPU** with Cortex-A73 + Cortex-A53 big.LITTLE architecture and crypto extensions
- **5 TOPS NPU** for AI/ML inference (general purpose, neuro, and tensor processing)
- **Mali-G52 MP4 GPU** with OpenGL ES 3.2, Vulkan 1.1, and OpenCL 2.0 support
- **4GB LPDDR4** RAM with 4× USB 3.0 ports
- **4K HDR** output via HDMI 2.0
- **Gigabit Ethernet** with optional Power-over-Ethernet support
- **MIPI CSI/DSI** 4-lane camera and display interfaces
- **Pi-compatible** 40-pin GPIO header in 85×56mm form factor

## Software Support

Supported by mainline Linux, Ubuntu, Debian, and Armbian with 10-year hardware and 15-year software lifecycle commitment from Libre Computer.

## Where to Buy

- [Libre Computer](https://openhardware.directory/r?to=https%3A%2F%2Flibre.computer%2Fproducts%2Faml-a311d-cc%2F&ref=openhardware.directory&product=libre-computer-alta&source=md-export)

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flibre.computer%2Fproducts%2Faml-a311d-cc%2F&ref=openhardware.directory&product=libre-computer-alta&source=md-export)

## Tags

`sbc`, `single-board-computer`, `amlogic`, `a311d`, `npu`, `ai`, `4k`, `hdr`, `poe`, `arm`, `cortex-a73`, `cortex-a53`, `raspberry-pi-compatible`, `libre-computer`

## Images

![Libre Computer Alta](https://nbg1.your-objectstorage.com/openhardware-directory/entities/libre-computer-alta/71ef070d9ae8.jpg)
![Libre Computer Alta](https://nbg1.your-objectstorage.com/openhardware-directory/entities/libre-computer-alta/d2a8b25dbd1c.jpg)
![Libre Computer Alta](https://nbg1.your-objectstorage.com/openhardware-directory/entities/libre-computer-alta/b7b47757af77.jpg)
![Libre Computer Alta](https://nbg1.your-objectstorage.com/openhardware-directory/entities/libre-computer-alta/1d577bb8adba.jpg)

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