These step-by-step instructions walk you through installing an HDD or SSD for internal music storage in Nucleus or Nucleus+ (Rev A and Rev B).

Have a Nucleus One or Nucleus Titan? Please see the installation guide for Nucleus One or Nucleus Titan instead.

Please install an empty drive. Your Nucleus formats the drive after installation, which erases everything on it, so please don't pre-format it or load music onto it first.

Step 1: Make sure you have everything

• A 2.5" HDD or SSD: up to 7mm or 9mm high for Rev A, or up to 15mm high for Rev B. Nucleus supports drives up to 4TB, and Nucleus+ supports drives up to 8TB. If you're not sure which version you have, please see Do I have Nucleus Rev A or Nucleus Rev B?
• 4 black screws.
• 4 silver screws.*
• 2 hard drive rails.*

*Your hard drive rails and silver screws may already be installed inside your Nucleus. If they are, please skip ahead to Step 2.

Before you open your Nucleus, please shut it down safely. Open the Nucleus Web Administration Interface and power it off. Then unplug the power cable and any other cables.

Step 2: Remove the cover

Unscrew the 5 black cover screws on the bottom of your Nucleus (Figure 2.1), then remove the cover (Figure 2.2). Please keep these screws for Step 6.

Figure 2.1: Unscrew the cover

Figure 2.2: Remove the cover

Step 3: Mount the hard drive rails

Mount the hard drive rails using the 4 black screws, with the elongated holes facing down.

Step 4: Install the hard drive

Place the hard drive on the platform inside your Nucleus, and leave it disconnected for now. Then gently slide the drive into the connector.

Step 5: Secure the hard drive

Now that the hard drive is connected, secure it with the 4 silver screws.

Step 6: Replace the cover

Replace the cover on your Nucleus using the 5 black cover screws from Step 2. Then reconnect the power cable and your other cables.

Step 7: Turn on the Nucleus and format the drive

Turn your Nucleus back on, then format the new drive in the Nucleus Web Administration Interface. The drive isn't available in Roon until it's formatted. For steps, please see Formatting on Nucleus and Nucleus+.

Once it's formatted, you can copy your music to it. For steps, please see Copy Music to the Drive.

Still can't see the drive after installing it? Please get in touch with our Technical Support team here.