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    Home >  Taco NAS



Radxa Taco is a complete NAS/Router solution designed based on the Raspberry Pi Compute Module 4. It utilizes the high-speed PCIe buses on CM4 for ultra-fast network connectivity and storage IO. It comes with the following features:

Taco rpi.jpeg

(Image credit: @geerlingguy)

  • Up to 5x HDD/SSD, support 2.5inch or 3.5inch SSD
  • High-speed PCIe switch for SATA & Ethernet
  • One 2.5G Ethernet and one native GbE
  • One M.2 M Key for NVMe SSD
  • One M.2 E Key for WiFi 6 modules or Google Coral AI module
  • 12V DC power input for 2.5 and 3.5-inch HDD
  • External standard ATX power supply support for 3.5inch HDD
  • Support HDD suspend mode
  • Support software RAID 0/1/5/10
  • Support USB Direct Access Mode from PC(USB 2.0 only)
  • Optional PWM control fan for HDD heat dispatching
  • Optional OLED display for system info such as IP address or Storage usage

Detail of the board

Taco-front.png Taco-back.png

Third Party Case

Getting Started

Installation OS

for Raspberry Pi CM4

1. Download an image from here

2. Clone usbboot and compile it

   sudo apt install git libusb-1.0-0-dev pkg-config
   git clone --depth=1
   cd usbboot

3. Hold down the maskrom key, connect the computer using the A-A cable, and release the maskrom key

4. Run rpiboot and view the CM4 device

   sudo ./rpiboot
   lsblk    # assume that CM4 is /dev/sdx

5. Burn the image to CM4

  xz -d /path/to/yymmdd-raspios-bullseye-xx.img.xz
  sudo dd if=/path/to/yymmdd-raspios-bullseye-xx.img of=/dev/sdx status=progress 

for Radxa CM3
 * TBD

Software support


We have provided a script to help control the Taco fan.

curl -sL | sudo -E bash -

Just copy the command above and paste it into the terminal and press enter.

Power Options

Power Consumption
2.5 HDD 3 ~ 5W
3.5 HDD 5 ~10W
Option 1: Power from DC (5.5*2.5)

We provide a 12V/5A DC power supply, which is included with the Taco kit.

Option 2: Power from ATX PSU

If you plan to put the Taco in a PC enclosure, then you can use the ATX PSU. Mostly ATX PSU can meet the power requirement. You need an ATX Floppy cable to power the Taco.

Known Issues

  • Booting from M.2 NVMe SSD is not supported since there is no driver for the PCIe switch on the Taco in the Raspberry Pi bootloader.