# ODROID HC4

> The ODROID HC4 is a NAS-focused single-board computer from Hardkernel with the Amlogic S905X3 SoC, 4GB DDR4 RAM, and two direct-connect SATA ports for dual-drive storage. It is purpose-built for home NAS and media server applications.

## Quick Facts

- **Brand:** Hardkernel
- **Price:** ~$65
- **CPU:** Amlogic S905X3 (Cortex-A55×4 @ 2.0 GHz)
- **CPU Architecture:** ARM Cortex-A55 (ARMv8-A 64-bit)
- **CPU Cores:** 4
- **RAM:** 4GB DDR4
- **Flash:** SPI flash (boot)
- **USB:** USB 3.0 ×1, USB 2.0 ×1
- **Power:** 12V/2A DC barrel jack
- **Operating Voltage:** 3.3V
- **Dimensions:** 110 × 110 mm
- **SD Card:** none (boots from SPI/eMMC)

## Connectivity

- **Ethernet:** Gigabit Ethernet (1000 Mbps)

## Use Cases

- home-server
- home-automation
- media-center

## Components

- **Amlogic S905X3** (soc): Amlogic S905X3 quad-core Cortex-A55 SoC with Mali-G31 GPU, supporting 4K HDR decode at up to 2.0 GHz. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.amlogic.com%2F%23Products%2F393%2Findex.html&ref=openhardware.directory&product=odroid-hc4&source=md-export)

## Description

## Overview

The ODROID HC4 (Home Cloud 4) is a purpose-built NAS appliance from Hardkernel sharing the same Amlogic S905X3 quad-core Cortex-A55 SoC and 4GB DDR4 RAM as the C4, but in a case-friendly form factor optimized for storage. Two SATA ports connect directly to the SoC via PCIe, enabling full-speed access to two 2.5" or 3.5" SATA drives without the bandwidth limitations of a USB bridge.

The HC4 omits the display outputs of its sibling boards, focusing resources on storage and networking. Gigabit Ethernet and a USB 3.0 port handle data transfer, while SPI flash provides reliable boot storage. An optional OLED display can be added to show system status. The board includes PCIe-attached SATA rather than USB-to-SATA, which is a significant advantage for NAS performance and reliability.

Armbian provides well-maintained minimal and IoT images for the HC4, making it an excellent platform for OpenMediaVault, Nextcloud, and other self-hosted storage solutions. Note that the stock Petitboot bootloader must be replaced with Armbian's mainline u-boot before installation. Power is supplied via a 12V DC barrel jack.

## Where to Buy

- [Hardkernel](https://openhardware.directory/r?to=https%3A%2F%2Fwww.hardkernel.com%2Fshop%2Fodroid-hc4%2F&ref=openhardware.directory&product=odroid-hc4&source=md-export) — 65.00

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.hardkernel.com%2Fshop%2Fodroid-hc4%2F&ref=openhardware.directory&product=odroid-hc4&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwiki.odroid.com%2Fodroid-hc4%2Fodroid-hc4&ref=openhardware.directory&product=odroid-hc4&source=md-export)

## Images

![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/b363599a9439.png)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/2c011c4391ab.jpg)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/cff5d0b03e91.png)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/1b10b7deda4d.png)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/064156065fa3.png)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/a1cb1cd9e1f5.jpg)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/831d45f568fb.png)
![ODROID HC4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/odroid-hc4/a8d4191d5bcb.png)

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