# Helios64

> Open-source 5-bay NAS server board by Kobol, powered by the Rockchip RK3399 SoC, 4GB LPDDR4, eMMC, WiFi 5+BT 5.0, 2.5GbE, 5× SATA, and 12V DC — a high-performance personal cloud storage platform.

## Quick Facts

- **Brand:** Kobol
- **Board Type:** linux-sbc
- **Price:** ~$189
- **Product Readiness:** developer
- **CPU:** Dual Cortex-A72 @ 2GHz + Quad Cortex-A53 @ 1.5GHz (Rockchip RK3399)
- **CPU Architecture:** ARM Cortex-A72 + Cortex-A53
- **CPU Cores:** 6
- **RAM:** 4GB LPDDR4
- **Flash:** 16GB eMMC
- **USB:** USB 3.0 + USB-C
- **Power:** 12V DC
- **Operating Voltage:** 3.3V
- **Antenna:** Built-in PCB antenna
- **SD Card:** microSD

## Connectivity

- **Wifi:** 802.11ac (WiFi 5)
- **Bluetooth:** BLE 5.0
- **Ethernet:** 2.5 Gigabit

## Open Source

- **Status:** fully-open
- **Firmware:** Yes
- **Schematics:** Yes
- **PCB Layout:** Yes

## Compatible Firmware

armbian

## Use Cases

- nas
- self-hosted-storage
- personal-cloud
- home-server

## Components

- **RK3399** (soc): Rockchip RK3399 hexa-core SoC with dual Cortex-A72 @ 2GHz + quad Cortex-A53 @ 1.5GHz and Mali-T860 MP4 GPU. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.rock-chips.com%2Fa%2Fen%2Fproducts%2FRK33_Series%2F2016%2F0412%2F758.html&ref=openhardware.directory&product=helios64&source=md-export)

## Description

## Overview

The Helios64 is Kobol's flagship open-source NAS board, representing a significant upgrade over its predecessor Helios4. Powered by the Rockchip RK3399 hexa-core SoC with dual high-performance Cortex-A72 cores and four efficiency Cortex-A53 cores, it delivers considerably more CPU headroom for media transcoding, encryption, and multiple simultaneous user workloads compared to the Armada 388 generation.

The board is purpose-built for personal cloud storage with five SATA 3.0 ports, a 2.5 Gigabit Ethernet port for fast LAN transfers, WiFi 5 (802.11ac) with Bluetooth 5.0, 4GB of LPDDR4 RAM, and 16GB of eMMC for the OS. A built-in UPS battery circuit protects against unexpected power cuts, and the board's open hardware design — with full schematics and PCB files published on GitHub — provides complete transparency for advanced users and commercial integrators alike.

Running Armbian with OpenMediaVault or similar NAS software stacks, the Helios64 is capable of saturating a Gigabit LAN connection for sequential file transfers, supporting Plex media server with hardware-accelerated transcoding via the RK3399 VPU, and hosting multiple services simultaneously. It is aimed at power users who demand more performance from their self-hosted storage than entry-level NAS appliances can provide, while maintaining full software freedom and data ownership.

## Where to Buy

- [Buy for $189](https://openhardware.directory/r?to=https%3A%2F%2Fkobol.io%2F&ref=openhardware.directory&product=helios64&source=md-export)

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fkobol.io%2Fhelios64%2F&ref=openhardware.directory&product=helios64&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fkobol-io%2Fhelios64&ref=openhardware.directory&product=helios64&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwww.armbian.com%2Fhelios64%2F&ref=openhardware.directory&product=helios64&source=md-export)

## Tags

`nas`, `self-hosted`, `personal-cloud`, `rockchip`, `rk3399`, `5-bay`, `sata`, `2.5gbe`

## Images

![Helios64](https://nbg1.your-objectstorage.com/openhardware-directory/entities/helios64/f46a8e943fd1.png)

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