A four-bay aluminum NAS enclosure for Raspberry Pi 4, with SATA storage support, a programmable OLED display, and integrated power management — all in one tidy box.
The Argon EON Pi NAS (SKU: ARG-EON-NAS, Model No. A22-001 AR-EON) is a premium aluminum enclosure that transforms a Raspberry Pi 4 into a capable home or small-office network-attached storage server. It accommodates up to four SATA drives across two form factors — two 3.5" bays and two 2.5" bays — giving you the flexibility to mix traditional hard drives with solid-state drives in a single unit.
What sets the EON apart from a simple enclosure is the suite of integrated peripherals: a programmable 128×64 OLED display (SSD1306 chipset) that shows live system status, a built-in real-time clock (RTC), a software-controllable fan, and an IR receiver. The all-aluminum construction does double duty as both an aesthetic choice and a passive thermal management system, conducting heat away from the Raspberry Pi 4 before the active fan ever needs to spin up. All external ports are routed to a single side of the enclosure, keeping cable management clean and predictable.
The Argon EON is aimed at makers and hobbyists who want more than a basic file share — people building a personal cloud, a media server, or a home backup solution on top of an open-source NAS operating system. Because it relies on a Raspberry Pi 4 as its compute engine, it remains fully hackable: the GPIO header, USB ports, and Ethernet passthrough are all accessible, and every integrated feature (fan, OLED, RTC, IR) is software-configurable.
📝 Note: The Argon EON Pi NAS is compatible with Raspberry Pi 4 only. The Raspberry Pi 5 and earlier Raspberry Pi models are not supported.
⚠️ Warning: The Argon EON Pi NAS is End of Life (EOL) and is no longer in production. Spare parts — including the OLED display — may have limited availability. Troubleshooting documentation is maintained, but bug fixes and new feature development have ceased.
📝 Note: The 12V 5A power supply in the box powers the enclosure and drives only. The Raspberry Pi 4 itself requires a separate 5V 3A USB-C power supply, which is not included and must be sourced separately.
[TODO: Confirm whether SATA cables are included or must be sourced separately]
[TODO: Confirm whether drive mounting screws are included]
[TODO: Confirm whether a quick-start card or printed guide is included]
| Specification | Value |
|---|---|
| SKU | ARG-EON-NAS |
| Model Number | A22-001 AR-EON |
| UPC/EAN | 6974297860033 |
| Product Status | End of Life (EOL) |
| Enclosure material | Aluminum |
| Enclosure dimensions | 21 × 17 × 14.5 cm (L×W×H) |
| Enclosure weight | 1.95 kg |
| Compatible SBC | Raspberry Pi 4 Model B (only) |
| Drive bays — 3.5" | 2× 3.5" SATA |
| Drive bays — 2.5" | 2× 2.5" SATA |
| Total drive bays | 4 |
| SATA connection method | USB 3.0 bridge |
| Display | Programmable OLED |
| Display resolution | 128×64 pixels |
| Display chipset | SSD1306 |
| Display information | IP address, CPU status, storage status |
| Real-time clock (RTC) | Yes, built-in |
| Fan | Yes, software-controllable |
| IR receiver | Yes, included |
| USB | USB 3.0 hub |
| Ethernet | Gigabit Ethernet passthrough |
| Power button | Yes, multi-function, integrated |
| Power input | 12V 5A barrel connector |
| Included power supply | 12V 5A |
| microSD access | Yes — push-to-eject from external port |
| Thermal management | Passive aluminum heat conduction + active software-controllable fan |
| Port layout | All ports on one side |
| Recommended Pi RAM | 8GB (4GB functional; 8GB recommended for NAS workloads) |
| Minimum EEPROM version | May 2026 or newer |
The Raspberry Pi 4 Model B is the only supported compute board for the Argon EON Pi NAS. It is a quad-core 64-bit single-board computer with USB 3.0, Gigabit Ethernet, and dual micro-HDMI outputs.
Source: raspberrypi.com
| Specification | Value |
|---|---|
| Processor | Broadcom BCM2711, quad-core Cortex-A72 (ARMv8) 64-bit, 1.8 GHz |
| GPU | VideoCore VI — OpenGL ES 3.1, 4Kp60 H.265 hardware decode |
| RAM | 2GB, 4GB, or 8GB LPDDR4-3200 SDRAM (selected at purchase) |
| Built-in storage | microSD card slot (UHS-I) |
| Storage expansion (via EON) | 4× SATA bays (2× 3.5" + 2× 2.5") via USB 3.0 bridge |
| Wi-Fi | Dual-band 802.11ac (2.4 GHz and 5 GHz) |
| Bluetooth | Bluetooth 5.0 / BLE |
| Ethernet | Gigabit Ethernet (on-board, passed through EON enclosure) |
| USB | 2× USB 3.0 (5 Gbps) + 2× USB 2.0 |
| HDMI | 2× micro-HDMI — supports simultaneous 4Kp60 output |
| Other display interfaces | MIPI DSI (ribbon-cable display), MIPI CSI (camera) |
| GPIO | 40-pin standard Raspberry Pi GPIO header |
| Power input | USB-C |
| Recommended PSU (board) | 5V @ 3A (15W) |
| OS support | Raspberry Pi OS (32-bit and 64-bit), Ubuntu, and other Linux distributions |
| Form factor | Standard Raspberry Pi |
| Dimensions | 85 mm × 56 mm |
Compatibility caveats for the Argon EON:
📝 Note: Complete all software preparation steps (Parts A and B below) before physically installing the Raspberry Pi into the enclosure. This avoids the need to disassemble the unit if a firmware update or OS reinstall is required.
sudo apt update
sudo apt full-upgrade -y
sudo rpi-eeprom-update -a
[TODO: Provide the Argon EON installation script URL or repository path — not available in current sources]
sudo shutdown -h now
⚠️ Warning: When all four hard drives spin up simultaneously, the inrush current can be significant. Ensure the 12V 5A power supply is connected directly to a mains outlet — do not use extension leads or power strips that may introduce voltage drop under load.
lsblk
All connected drives should appear as block devices (e.g., /dev/sda, /dev/sdb, etc.). If a drive does not appear, see the Troubleshooting section.
The Argon EON software package configures fan speed control, OLED display output, the multi-function power button, and the RTC. Install it using the Argon-provided script:
[TODO: Provide the Argon EON installation script URL and full install command — not available in current sources]
The OLED display uses the SSD1306 chipset over an I2C interface and shows IP address, CPU status, and storage status by default. Display behaviour is managed by the Argon EON software package installed in the step above.
To verify the display is detected on the I2C bus:
i2cdetect -y 1
The SSD1306 should appear at address 0x3C or 0x3D.
The EON's fan is software-controllable via the Argon EON software package. Fan speed thresholds are configured after installation.
[TODO: Document the specific fan configuration file path and syntax — not available in current sources]
The built-in RTC keeps system time across power cycles without requiring a network connection. The RTC is activated by the Argon EON software package during installation. To verify the RTC is active after installation:
timedatectl status
The RTC should be listed as synchronized.
[TODO: Document the specific RTC device name and any manual
config.txtoverlays required if the installation script does not configure them automatically]
The IR receiver is supported via the standard Linux IR kernel driver stack. Full configuration (key mapping, lirc or equivalent daemon setup) is handled by the Argon EON software package.
[TODO: Document IR remote configuration steps and compatible remote specifications]
After first boot with drives installed, list all block devices:
lsblk
To check drive health and identify filesystems:
sudo fdisk -l
To run a filesystem check on a specific drive (replace /dev/sda with the target device):
sudo fsck /dev/sda
⚠️ Warning: Never run
fsckon a mounted partition. Unmount the partition first, or boot from a separate microSD card when checking drives.
Symptom: lsblk does not show one or more installed drives.
Likely causes:
- USB 3.0 bridge cable not fully seated
- Drive not receiving adequate power at spin-up
- Outdated EEPROM bootloader
Resolution:
1. Power off completely. Remove and firmly reseat the USB 3.0 bridge cable at both the drive board and the main board connectors.
2. Power back on and re-run lsblk. If the drive still does not appear, try the drive in a different bay to isolate a bay fault from a drive fault.
3. If no drives are detected at all, confirm your EEPROM bootloader is May 2026 or newer:
bash
sudo rpi-eeprom-update -a
4. If the issue persists after updating, re-flash a fresh Raspberry Pi OS image — older or corrupted OS images can prevent proper USB 3.0 storage enumeration.
Symptom: Drives appear at boot but disconnect randomly under load or disappear after a period of use.
Likely causes:
- USB 3.0 bandwidth saturation from multiple simultaneous drives and USB devices
- Shared USB 3.0 controller on the Raspberry Pi 4 overloaded
Resolution:
1. Disconnect any non-essential USB peripherals from the EON's USB hub to reduce bandwidth contention.
2. If using all four SATA bays simultaneously with large HDDs, consider staggered spin-up via your NAS OS if it supports that feature.
3. Ensure no other USB 3.0 devices (e.g., external SSDs plugged into the rear USB ports) are connected during initial testing — add them back one at a time to identify the saturation point.
Symptom: The OLED display does not illuminate, or shows nothing after boot.
Likely causes:
- Argon EON software package not installed
- I2C interface not enabled
- Display hardware fault (see EOL spare parts note)
Resolution:
1. Confirm the Argon EON software package is installed. If not, reinstall it using the Argon installation script.
2. Verify I2C is enabled:
bash
sudo raspi-config
Navigate to Interface Options → I2C → Enable.
3. Check that the SSD1306 is visible on the I2C bus:
```bash
i2c