disqus: # Helios4 Introduction. Helios4 is a powerful ARM based board specially designed for Network Attached Storage. It harnesses its processing capabilities from the **ARMADA 38x-MicroSoM** from [SolidRun](https://wiki.solid-run.com/doku.php?id=products:a38x:microsom). ![Helios64](/helios4/img/intro/helios4.jpg) The **Marvell ARMADA® 388** is a robust and energy-efficient System on Chip (SoC) with a collection of high speed interfaces especially suited for headless data processing, networking and storage. This Dual-core ARM Cortex A9 CPU clocked at 1.6 Ghz, paired with 2GB of ECC memory, integrates a Cryptographic and XOR DMA engines to provide the best level of performance and reliability for NAS functionalities. ## Overall Specifications |**Board Specifications**|| |------------|-----------| |**SoC**|| |SoC Model|Marvell Armada 388 (88F6828)
ARM Cortex-A9| |SoC Architecture|ARMv7 32-bit| |CPU Frequency|Dual Core 1.6 Ghz| |Additional Features|- RAID Acceleration Engines
- Security Acceleration Engines
- Wake-on-LAN| |**Memory**|| |System Memory|2GB DDR3L ECC| |**HDD/SSD Interfaces**|| |SATA 3.0 Ports|4| |Max Raw Capacity|64 TB (16 TB drive x 4)| |Max Single Volume Size|16 TB| |**External Interfaces**|| |GbE LAN Port|1| |USB 3.0|2| |microSD (SDIO 3.0)|1| |**Developer Interfaces**|| |GPIO|12| |I2C|1| |UART|1 (via onboard Micro-USB converter)| |**Others**|| |Boot Mode Selector|- SPI
- SD Card
- UART
- SATA| |SPI NOR Flash|32Mbit onboard| |PWM FAN|2| |RTC Battery|1| |DC input|12V / 8A| |**Mechanical Specifications**|| |------------|-----------| |Board Dimension|100mm x 100mm| |Board Weight|120gr| |Case Dimention (H x W x D)|182 mm x 107 mm x 210 mm| |Case Weight (without HDD)|450gr| |Case Material|Colored Acrylic| |**Software Specifications**|| |------------|-----------| |Operating System|Linux Debian and Ubuntu| |Kernel Version|4.14 |U-Boot Version|2018.11 |Software Partners|- Armbian: Debian and Ubuntu for ARM board
- OpenMediaVault: Linux NAS turn-key solution
- Syncloud: Cloud services at your premises| ## Where to Start ? Once you have received your Helios4, this wiki will run you through all the necessary steps to setup your system. 1. [Kit Assembly](/helios4/kit) - How to put together your Helios4. 2. [Download](/download) - Get the latest OS build to install. 3. [Install](/helios4/install) - 1st startup and set-up instructions. 4. [Software](/helios4/omv) - Collection of tutorials on different 3rd party applications. 5. [Hardware](/helios4/hardware) - Understand Helios4 hardware and take advantage of all its features. ### Armbian Support Forum If you are facing an issue, you can go on the **Armbian** forum to ask for some help. There is a thread dedicated to [Helios4 support](https://forum.armbian.com/topic/6033-helios4-support/).