How to increase the storage of your Xbox Series S and X?

To increase your storage Xbox Series X and S, you have two real options:

• A SSD expansion card, which lets you play games directly with the same performance as internal storage,
• Or a external USB hard drive, which is less expensive but limited to basic storage and transfer.

We'll break down both options for you, including prices and the best plan available right now.

To find out the price of an expansion card for your Xbox:

Check the price of an expansion card compatible with my Xbox Series

What additional storage do you need for your Xbox Series?

The Xbox Series X takes on board a SSD internal to 1 TB (approximately 802 GB (that are actually usable). The Xbox Series S offers 512 GB (approximately 364 GB (available). With today's games taking up more and more space, you'll quickly reach the limit.

There are two ways to increase your Xbox Series :

• Storage Expansion Card : You play directly from the card, with performance identical to that of the The console's internal SSD. Essential for games next-generation, optimized Series X|S.
• External USB Hard Drive : Storage and transfer only—much more affordable. Perfect for archiving your old backward-compatible titles Xbox One and free up space on the internal SSD.

The key difference is simple: a standard external hard drive doesn't have enough processing power to run the games Xbox Series X|S as a native speaker.

If you want to play next-gen games without compromise, only the storage expansion card allows it.

The benchmark in this field remains the Seagate Storage Expansion Card. Alternatives are available at Western Digital and SanDisk, but it's Seagate which dominates the market and ensures the best compatibility.

Maximum storage capacity supported by the Xbox Series

The Xbox Series X can accommodate a single expansion card both in its proprietary port. The maximum capacity available to date is 4 To with the map Seagate. Combined with the internal SSD of 1 TB, so you can reach 5 TB of total storage on your console.

The Xbox Series S works exactly the same way. It supports the same expansion cards Series X|S. The proprietary port is the same on both consoles. So you can add up to 4 additional TB on the Xbox Series S, no matter what games you have.

In addition, you can connect as many as external USB hard drives that you want to use to store your backward-compatible games. There is no official limit on the number of USB storage devices you can connect.

Introducing the Seagate Storage Expansion Card for Xbox Series X|S

The storage expansion card Seagate slips into the proprietary expansion port located at the back of the console. No cables, no setup. Just insert the card, and it's ready to go right away.

This isn't just an external hard drive. This card is based on the Xbox Velocity Architecture, the same technology as the The console's internal SSD.

It uses an interface NVMe through a proprietary port called Storage Expansion Port, similar to the format CFexpress. You can launch your games directly from the card, with exactly the same performance as from the original storage.

In terms of physical size, the card is still tiny:

• 3.2 cm wide; ;
• 5.1 cm long; ;
• 0.8 cm in height; ;
• weighing only 30 grams.

Its compact design means you can leave it plugged in all the time. It barely protrudes from the console and doesn't block the ventilation.

Technical Specifications of the Seagate Card for Xbox Series X|S

Available Capacity and Prices

The storage expansion card Seagate is available in four capacities to suit every need and budget:

• 512 GB : for a few games Series X|S additional items, at the lowest price; ;
• 1 TB : the best value for money in terms of space for most gamers; ;
• 2 TB : ideal if you have a large collection of games; ;
• 4 To : the maximum capacity, so you'll never have to uninstall a game again.

Prices vary depending on capacity and current offers. You can view current prices and add items to your cart directly at Amazon, the fastest seller for this product. It's still best to find the best price by comparing offers before buying.

The card is covered by the statutory warranty of conformity applicable in France, as well as by a commercial warranty Seagate.

View the price of the Seagate card

Speed and performance identical to that of an internal SSD

That's the real strength of this additional external memory. Thanks to the Xbox Velocity Architecture and to its cutting-edge performance, the gaming experience is exactly the same whether you're playing from internal storage or from the expansion card.

The map reaches a sequential transfer rate of approximately 2.4 GB/s, which corresponds to the transfer rate of the internal SSD in the Xbox Series X. Load times are virtually nonexistent. You can pick up each game exactly where you left off, in just a few seconds, with no lag.

This speed makes all the difference compared to a standard USB drive, whose limited transfer rate makes it impossible to run games Xbox Series X|S natives.

Compatibility with Xbox consoles

The expansion card Seagate is compatible with the Xbox Series X and the Xbox Series S. It is not compatible with older consoles Xbox One nor with a PC, because the proprietary port is exclusive to consoles Series.

It also won't work on a PS5 or on consoles PlayStation, which use a different format.

If you have a Xbox Elite Series 2 or a controller Xbox, please note that the expansion card is a console accessory and is unrelated to controller accessories. It affects only the console's storage.

An external USB hard drive or an expansion card for your Xbox Series?

A external USB hard drive It remains a useful option for storing and transferring games, but with one clear limitation: you can't launch the games Xbox Series X|S directly from him.

In practice, it's mainly used to archive your games to free up space on the Internal SSD of the Xbox Series, or to play backward-compatible games Xbox One and Xbox 360, which have been running smoothly from a disk USB.

To play next-generation games on your Xbox Series X Where Series S, the storage expansion card remains the only real solution.

Here's a quick comparison to help you choose:

Alternatives to Seagate: WD and SanDisk

The map Seagate dominates the market, but two other manufacturers offer officially licensed expansion cards for the consoles Xbox Series :

• Western Digital (WD Black C50) : Available since 2023 in 512 GB, 1 TB, and 2 TB capacities.

The performance is identical to that of Seagate, often at a slightly lower price.

• SanDisk (Optimus GX C50) : the newest model on the market, also available in capacities up to 2 TB.

These three maps are based on the same Xbox Velocity Architecture and offer performance on par with internal SSDs.

Seagate remains the only manufacturer to offer a 4 TB capacity. Price is often the main factor in the decision-making process at the time of purchase.

Other Ways to Increase Your Xbox Series Storage

If you don't want to invest in an expansion card right away, there are other options for quickly freeing up storage space:

• Uninstall games you've finished : the easiest and fastest way. Your games stay in your library Xbox and you can reinstall them at any time.
• Move Your Games to a USB Drive : You can store backward-compatible titles on an external hard drive and free up space on the console's internal SSD for your games Series X|S.
• Use the Xbox Game Pass : Instead of buying and installing multiple games at the same time, you only install the ones you're currently playing. This reduces the amount of content stored at any given time.

These solutions are free. They aren't a substitute for an expansion pack if you have a large game collection, but they let you put off the purchase until you find the best deal.

Otherwise, to increase the storage capacity of your Xbox Series S and X:

Use a Series X/S-compatible expansion card

FAQs

Can you use any expansion card on the Xbox Series S?

No. Only compatible expansion cards Series X|S work.

The Maps Seagate, WD Black C50 and SanDisk Optimus GX C50 are the only ones that use the console's proprietary port. A card SD or a standard SSD are not compatible.

What is the maximum storage capacity on the Xbox Series X?

By combining the internal SSD from 1 TB and an expansion card for 4 To, you reach 5 TB of total storage on the Xbox Series X.

For the Xbox Series S, the maximum is 4.5 TB (512 GB internal storage + 4 TB on a card).

Which expansion card should you choose for the Xbox Series X in August 2026?

The expansion card Seagate 1 TB remains the best choice for most players.

This product offers the best value for the extra storage space. If you have a large game collection, the version 2 TB is more convenient because it avoids having to uninstall titles on a regular basis.

Can you connect an external hard drive to the Xbox Series X while using an expansion card?

Yes. Both are compatible at the same time. You can use the expansion card for your games Xbox Series X|S and an external USB hard drive to back up your games Xbox One backward-compatible.

The console easily handles both types of storage at the same time.

When will the first Xbox expansion cards be released?

The first compatible expansion cards Xbox Series X|S were released in November 2020, along with the consoles. Seagate was the only official manufacturer at launch.

Other manufacturers entered the market later: Western Digital with the WD Black C50 in 2023, then SanDisk with theOptimus GX C50.

Does the Seagate expansion card come with a warranty?

Yes. The card comes with the statutory warranty of conformity applicable in France. The statutory warranty covers product defects.

A commercial warranty Seagate varies by retailer. Be sure to keep your receipt to take advantage of this offer, and check the seller's website for details.