TL;DR
- PS5’s 825GB SSD fills quickly, but PS4 games can run from external USB drives
- Format external drives through Settings > Storage for PS5 compatibility
- Enable automatic PS4 game installation to external storage to save SSD space
- Always safely eject external drives to prevent data corruption
- PS5-native games require internal SSD, while PS4 titles offer storage flexibility
The PlayStation 5 delivers exceptional gaming experiences with advanced features like 120Hz support and the innovative DualSense controller’s adaptive triggers. However, the console’s 825GB solid-state drive presents a significant storage constraint that becomes apparent quickly with modern game installations. Fortunately, Sony’s backward compatibility system allows PS4 titles to be installed and played directly from external storage devices, providing an effective solution for managing your game library.
While next-generation PS5 games must reside on the internal ultra-high-speed SSD to leverage its performance capabilities, the vast majority of PS4 titles work perfectly from external hard drives or SSDs. This storage strategy becomes crucial when you consider that many popular PS4 games exceed 50GB each, with some titles like Battlefield 6 and other major releases consuming over 100GB of space. By moving these compatible games to external storage, you can preserve your precious internal SSD space for PS5-exclusive titles that require the faster storage technology.

This comprehensive guide will walk you through the complete process of setting up external storage for your PS4 games on PS5. We’ll cover drive formatting procedures, automatic installation configuration, storage management techniques, and safe removal practices. Additionally, we’ll explore optimization strategies to maximize your storage efficiency while maintaining optimal game performance across your entire library.
Before using any external storage device with your PS5, it must be properly formatted to meet the console’s specific requirements. The formatting process erases all existing data on the drive, so ensure you’ve backed up any important files before proceeding. The PS5 supports both traditional hard disk drives (HDDs) and faster solid-state drives (SSDs) connected via USB, with recommended specifications including USB 3.0 or later and capacities between 250GB and 8TB.
Follow these steps to format your external storage device:

Within the Storage menu, locate your connected external drive and select “Format as Extended Storage.” The system will display a warning about data deletion – confirm that you’ve backed up any necessary files before proceeding. The formatting process typically takes just a few minutes, after which your drive will be ready for game installations.

For optimal performance, consider using an external SSD rather than a traditional HDD. While both will work, SSDs provide significantly faster loading times for PS4 games, reducing wait times between missions in titles like Conquest mode games or when fast-traveling in open-world adventures. The performance difference is particularly noticeable in games with frequent loading screens or large open worlds.
Once your external storage is properly formatted, you can configure your PS5 to automatically install PS4 games to the external drive, preserving internal SSD space for PS5-native titles. This automatic installation setting ensures that any new PS4 games you download or install from discs will go directly to your external storage without manual intervention.
To enable automatic PS4 game installation to external storage:

For existing PS4 games already installed on your internal storage, you can easily transfer them to your external drive. Navigate to Settings > Storage > Console Storage > Games and Apps, select the games you want to move, and choose “Move to Extended Storage.” This process is particularly useful for freeing up space for new PS5 titles while keeping your favorite PS4 games accessible.

When managing your Assignments and game progress across storage devices, note that save data is always stored separately on the internal SSD or cloud storage. This means you can move games between storage locations without affecting your progress, trophies, or game settings. For comprehensive strategies on managing your entire game library, check out our Complete Guide to game optimization.
Properly disconnecting your external storage is crucial to prevent data corruption and ensure the longevity of your drive and game installations. Never simply unplug the drive while the PS5 is powered on, as this can damage game files and potentially corrupt your entire external storage library.
To safely eject your external storage device:

The system will indicate when it’s safe to physically disconnect the drive. If you encounter any issues with game performance or loading times after reconnecting your external storage, consider rebuilding the database through Safe Mode. This maintenance procedure can resolve many storage-related performance issues without affecting your games or save data.

For ongoing storage management, periodically review your game library and consider uninstalling titles you’ve completed or no longer play. This practice is especially valuable when preparing for major new releases like Pax Armata or other anticipated titles that may require significant storage space. For more advanced storage strategies and weapon-specific configurations, explore our Weapons Unlock guide that includes storage considerations for different playstyles.
Action Checklist
- Connect compatible USB 3.0+ external drive to PS5
- Format drive via Settings > Storage as Extended Storage
- Enable automatic PS4 game installation to external storage
- Transfer existing PS4 games from internal to external storage
- Always safely eject via Settings before disconnecting
No reproduction without permission:Tsp Game Club » How to Install Games on External Hard Disk in PlayStation 5 Maximize PS5 storage by moving PS4 games to external drives with this comprehensive setup guide
