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The Radxa Penta SATA HAT is a $45 add-on board that allows you to connect up to five SATA hard drives or SSDs to a Raspberry Pi 5 to create a network-attached storage device for use as a file server, backup device, or just a small PC with support for a lot of storage.

Available now from ARACE, the board should be available from Amazon soon as well.

As CNX Software points out, the Penta SATA HAT is actually an accessory that Radxa has been selling for years. But up until now it was designed primarily for the company’s own single-board computer and was not compatible with Raspberry Pi devices until the Raspberry Pi 5 came around.

That’s because Raspberry Pi’s latest single-board computer is the first to support PCIe connections via a new FPC cable connector.

Radxa’s board has four SATA interfaces plus an eSATA connector, allowing you to connect 2.5 inch or 3.5 inch drives to a Raspberry Pi (or other supported single-board computers). Radxa says there’s software support for RAID 0, RAID 1, and RAID 5 configurations.

Other features include connectors for an optional fan or OLED display that can show storage information or other details, a 12V power input, and an ATX power interface that can be used to connect a PSU.

The board comes with an eSATA to SATA cable and screws for attaching the PENTA SATA HAT to a Raspberry Pi 5.

via Radxa Forum and CNX Software

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  1. I’m hoping that the HDD I bought 3 years ago was my last. I will move to SSDs when I get my next HDD failure. I have about 8TB of data that I like instant access to… at $200 per 4TB SSD, that is $400 for a single copy (if I had to buy them today). Hopefully I will be fine for 2-3 years.
    If I had to buy a file server today, I would invest in a n100 4×4 with 2.5Gbe and two m.2 slots. The OS will just use 2GB of the 8TB.

  2. What’s “RADIO 0”? I don’t recognize that as a drive layout (yes, it’s most likely a typo).
    That external 12v power kind of kills it for me. Needing a 2nd power supply just to shoehorn the Raspberry Pi into the role of a NAS seems silly, but so might running a full server in your basement for someone else, to each their own I guess.

    1. Regarding the power supply, I’ve yet to test it—but it seems like the 12V power plug will also power the Pi 5 via GPIO, so you can just have one power connection for both. It’s a requirement for powering the hard drives since they can’t be powered off the Pi’s 5v power alone.

      1. Oh, that’s interesting. Definitely looks more appealing then.
        I had assumed both would be needed since I agree a Pi’s power supply would struggle with 4 extra drives.
        (Imagine my surprise at Jeff Geerling replying to my comment, but then again it is Pi related… )