Welcome back to Andysworld!*™ and to Part 5 of my DIY UNRAID NAS series.

In this instalment, I explore a small but very useful upgrade: using the free internal USB headers inside the Intel NUC Extreme 11th Gen to hide the UnRAID boot USB neatly inside the chassis. This keeps the build clean, reduces the risk of accidental removal, and makes the system feel much more like a dedicated appliance.

Why Move the UnRAID USB Inside the NUC?

UNRAID must boot from a USB flash drive. Most people leave it plugged into an external port on the back of the system, but the NUC Extreme includes internal USB 2.0 header pins.

By using those internal headers, we can:

• Keep the USB drive inside the case
• Free up an external USB port
• Reduce the chance of accidental removal or damage
• Improve the overall look and tidiness of the build
• Make the system feel more like a self-contained NAS appliance

Credit and Hardware Used

This idea came from a very useful Reddit thread:

Reddit source: https://tinyurl.com/yd95mu37
Credit: Thanks to “JoshTheMoss” for highlighting the approach and the required cable.

Adapter Cable

The adapter used in this build was purchased from DeLock:

Adapter product page: https://www.delock.com/produkt/84834/merkmale.html

This adapter converts the internal USB header on the motherboard to a standard USB-A female connector, which is ideal for plugging in the UnRAID boot drive.

What Happens in Part 5

In this episode I:

• Open up the Intel NUC Extreme 11th Gen chassis
• Locate the unused internal USB header on the motherboard
• Prepare the UnRAID USB stick, wrapping it in Kapton tape for additional insulation and protection
• Install the DeLock internal USB adapter
• Route and position the cable neatly inside the chassis
• Connect the USB stick to the internal adapter (with the usual struggle of fitting fingers into a very small case)
• Confirm that the system still boots correctly from the now-internal USB device
• Give a short preview of what is coming next in Part 6

Video Chapters

00:00 – Intro
00:07 – Welcome to Hancock's VMware Half Hour
00:47 – Using the free internal USB headers
01:05 – Reddit Source – https://tinyurl.com/yd95mu37
01:17 – Kudos to "JoshTheMoss"
02:32 – The Reddit Post
02:44 – Purchased from – https://www.delock.com/produkt/84834/merkmale.html
02:59 – Intel NUC Extreme 11th Gen close-up
03:58 – Internal USB header left disconnected
04:36 – USB flash drive is used for UnRAID
04:49 – Wrapped USB flash drive in Kapton Tape
05:31 – Fit the cable with fat fingers
07:09 – Part 6 – NVMe Time
07:51 – 4 × 4 TB Samsung 990 PRO NVMe Gen 4
08:25 – Thanks for watching

Watch the Episode

Embedded video:

Follow the DIY UNRAID NAS Series on Andysworld!*™

This project is progressing nicely, and each part builds on the last. In Part 6, I move on to storage performance and install 4 × 4 TB Samsung 990 PRO Gen 4 NVMe SSDs for serious throughput.

If you are interested in homelab builds, UNRAID, VMware, or just general tinkering, keep an eye on the rest of the series here on Andysworld!*™.

Thanks for reading and for supporting the site.