How to Upgrade SSD and Install Windows on ROG Xbox Ally

Running out of room for your favourite games or noticing slower loading times? It might be time to upgrade your ROG Xbox Ally SSD. This powerful handheld gaming PC is built for performance, but its default storage can fill up quickly especially with large AAA titles like Cyberpunk 2077 or Starfield. 

Upgrading to a faster and larger SSD means more space for your library, quicker boot times and smoother gameplay across the board. The good news? It’s easier than you might think. 

In this complete ROG Xbox Ally SSD upgrade guide, we’ll walk you through everything from choosing the right drive to physically installing it and reinstalling Windows. By the end, your Ally will feel brand new and ready to handle anything you throw at it. 

Understanding the ROG Xbox Ally SSD Upgrade 

The ROG Ally uses an M.2 2230 NVMe PCIe Gen 4 SSD, which is a smaller, high-speed storage drive designed for compact devices like gaming handhelds and ultrabooks. 

Why Upgrade? 

Modern games are enormous; some take up more than 100GB each. With an upgraded SSD, you can: 

• Store more games without worrying about running out of space. 
• Load faster thanks to higher read and write speeds. 
• Enjoy smoother gameplay with fewer stutters during asset loading. 
• Future-proof your Ally, giving it the flexibility to handle new titles for years to come. 

Most users choose a 1TB or 2TB upgrade, but the Ally can technically support even larger options, such as 8TB SSDs, depending on your budget and brand choice. 

Upgrading doesn’t void your warranty if done correctly, and with the right tools, it’s a safe and straightforward process. 

Choosing the Best SSD for Your ROG Xbox Ally 

Before starting the upgrade, selecting the right SSD is crucial. The Ally’s internal storage slot supports the M.2 2230 NVMe PCIe Gen 4 interface, so make sure your chosen drive matches this specification. 

What to Look For 

• Form Factor: Only M.2 2230 SSDs will fit. Larger 2280 models won’t be compatible without adapters. 
• Storage Capacity: 1TB or 2TB is ideal for most users, while 4TB+ or 8TB options are great for heavy gamers or streamers. 
• Read/Write Speed: Go for at least 5000 MB/s read speed to maximise performance. 
• Power Efficiency: Drives with low power consumption will help maintain battery life and keep the system cooler. 

Recommended SSDs 

Here are a few tried-and-tested options available at Box: 

• SanDisk WD Black C50 1TB Expansion Card for Xbox - Black: Great value and reliable speeds, ideal for everyday gaming.

• Crucial 2TB P310 M.2 2230 PCI Express 4.0 x4 NVMe Solid State Drive (CT2000P310SSD2): Premium performance for users who want the fastest load times. 

Each of these drives offers fast performance, strong durability, and excellent compatibility with the ROG Xbox Ally. 

Tools You’ll Need for the Upgrade 

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You don’t need a full workshop to upgrade your Ally, just a few essential tools and a careful approach. 

Checklist: 

• tools
• A small precision screwdriver set (to remove the back panel screws). 
• A plastic prying tool (to open the casing safely without scratches). 
• A thermal pad (optional but useful for heat management). 
• A USB drive (8GB or larger) to reinstall Windows. 
• A backup drive or cloud storage for saving your data.

Tip: Always back up your files before starting. Make sure the Ally is powered off, unplugged, and fully cooled down before opening it.

Step-by-Step Guide: How to Upgrade the SSD 

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This is where the magic happens. Follow these steps carefully to upgrade your ROG Xbox Ally SSD safely. 

Step 1: Back Up Your Files 

Start by backing up your important data game saves, settings and documents. If you use platforms like Xbox Game Pass, Steam, or Epic Games, your progress will sync online automatically. For local files, copy them to an external SSD or cloud storage. 

Step 2: Prepare the New SSD 

Unbox your new SSD and double-check the model to ensure it’s an M.2 2230 NVMe PCIe Gen 4 drive. If you’d like, you can pre-format it using another PC, but this isn’t required as Windows will handle formatting during installation. 

Step 3: Open the ROG Ally Carefully 

Turn the Ally upside down on a soft surface and use your precision screwdriver to remove the screws on the back panel. Use your prying tool gently around the edges to separate the case. Take your time; the clips can be snug. Once opened, you’ll see the battery, fan, and SSD slot near the centre. 

Step 4: Remove the Old SSD 

Locate the current SSD (a small, flat chip secured by a single screw). Unscrew it carefully and slide it out at a slight angle. 

Before touching the new SSD, touch a metal object to discharge any static electricity. 

Step 5: Install the New SSD 

Insert the new drive at a 30-degree angle into the M.2 slot and press it down gently. 

Secure it using the screw you removed earlier. If you have a thermal pad, place it over the drive before reassembling the back panel. 

Step 6: Reassemble the Device 

Align the back cover and press gently around the edges until it clicks into place. Re-insert and tighten all screws securely. 

Step 7: Verify Installation 

Press and hold Volume Down + Power to enter the BIOS menu. Under Storage Devices, you should see your new SSD listed. 

If it’s detected, you’re ready to install Windows. 

Installing Windows on the New SSD 

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Once your new SSD is in place, you’ll need to reinstall Windows to get your system running again. This process also ensures maximum performance and compatibility. 

Step 1: Create a Bootable USB Drive 

On another PC, download Microsoft’s Windows Media Creation Tool and use it to create a bootable USB drive. Choose Windows 11 for the best compatibility with the ROG Ally. 

Step 2: Boot from USB 

Insert the USB drive into your Ally via a USB-C hub or dock. Hold Volume Down + Power to open the boot menu.  

Select the USB drive as the primary boot device. 

Step 3: Install Windows 

Follow the on-screen prompts to install Windows onto the new SSD. 
 When asked, select Custom Install and format the SSD. The installation will take around 10–15 minutes depending on the drive’s speed. 

Step 4: Reinstall Drivers and Armoury Crate 

Once Windows is installed, use Wi-Fi or Ethernet to reconnect to the internet. 

Download Armoury Crate SE from ASUS’s support site; this will automatically detect your Ally and install all necessary drivers, including graphics and controller software. 

Step 5: Update and Optimise 

Run Windows Update and Armoury Crate updates to ensure everything is current. 
 You can now reinstall your games from Xbox, Steam, or Epic accounts. 

After this step, your ROG Ally will boot faster, run smoother, and offer far more room for your growing game library. 

Common Mistakes to Avoid 

A few small errors can cause frustration, so it’s worth keeping these tips in mind: 

• Forgetting to back up data: Once the old SSD is removed, local files are gone. Always back up first. 
• Using the wrong SSD type: Only M.2 2230 NVMe PCIe Gen 4 drives fit correctly. 
• Applying too much pressure: The casing clips are firm but fragile; be gentle when opening. 
• Installing Windows on the wrong drive: Double-check which storage device you’re formatting. 
• Skipping driver updates: The Ally relies on up-to-date drivers for stable gaming performance. 

With care and patience, upgrading the SSD is a straightforward process that can dramatically improve your device’s performance. 

Recommended Accessories for Your ROG Xbox Ally 

Now that you’ve upgraded your Ally, you can enhance your setup even further with the right accessories. 

• Xbox Controllers: Perfect for docked play or when you prefer a classic console feel. 
• ASUS ROG Ally: Explore the latest models and accessories designed for seamless handheld gaming. 
• Handheld PC Gaming: Browse portable docks, protective cases, and cooling solutions. 
• Gaming Consoles: Compare handheld performance with traditional console setups. 
• PS5 consoles and Xbox Consoles: For players who love multi-platform gaming. 

Product Spotlight: 

• ASUS ROG Xbox Ally RC73YA-NH002W – the latest generation of ASUS’s powerful handheld gaming console, designed to push portable performance even further. It features improved thermal management for cooler, quieter operation during demanding AAA sessions, along with enhanced storage support for larger, faster SSDs. Powered by AMD Ryzen Z1 Extreme graphics, it delivers exceptional frame rates, smooth visuals, and quicker load times, whether you’re gaming on the go or docked at home. This upgraded model also supports faster memory and expanded capacity, making it ideal for gamers who want console-grade power in a sleek, portable design. 

 View product 

These accessories help you build a flexible setup that transitions seamlessly between handheld and home gaming. 

Final Thoughts: Supercharge Your ROG Xbox Ally

Upgrading your ROG Xbox Ally SSD is one of the simplest ways to unlock more power, performance, and storage. With faster speeds, additional space, and a clean Windows installation, you’ll enjoy an experience that feels brand-new — without buying a new console. 

Once you’ve upgraded, your Ally will handle more demanding games, load faster, and give you the flexibility to expand your collection freely. 

If you’re ready to take your setup to the next level, explore high-performance SSDs and the latest ROG Xbox Ally range at Box.co.uk — where great gaming gear meets great value.