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Insert the Xbox Series X|S storage expansion card into the dedicated slot on the back of the console. The console should format and configure it automatically; no separate manual formatting step is included in the manufacturer’s installation instructions.

Before you install the card

Use a storage expansion card designed for Xbox Series X|S, not just any external drive. Seagate’s Xbox-specific expansion card is designed for these consoles and supports Xbox Velocity Architecture. Seagate lists 1TB, 2TB, and 4TB capacities; check the exact model and your regional listing, since capacity does not establish price or availability.

A USB external drive is a different kind of storage. SanDisk’s support guidance says Xbox Series X|S-optimized games cannot be played from external USB storage. The available guidance does not establish all rules for storing or moving every game, so do not assume a USB drive works as a direct substitute for the dedicated card.

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Install and configure the expansion card

  1. Locate the storage expansion slot on the back of the Xbox Series X|S console.
  2. Insert the expansion card into that dedicated slot.
  3. Allow the console to format and configure the card automatically. The cited manufacturer installation guide does not describe a separate manual formatting operation.

Choose a capacity

Seagate lists 1TB, 2TB, and 4TB versions of its Storage Expansion Card for Xbox Series X|S. Choose based on the storage you want to add; the listed capacities alone do not establish which option is best for a particular game library.

#1 Best Overall
WD_Black 2TB C50 Storage Expansion Card, Officially Licensed for Xbox – Quick Resume, Plug & Play, NVMe SSD Expansion for Xbox Series X|S Gaming Consoles - WDBMPH0020BNC-WCSN
  • OFFICIALLY LICENSED STORAGE FOR XBOX. Play effortlessly with full Xbox integration and enjoy gaming experiences that adhere fully to Microsoft’s quality standards.
  • SPACE FOR MASSIVE GAMES. With up to 2TB[1] of storage, you have plenty of room to grow your game library and explore massive worlds.
  • SUPERSPEED NVMe CORE. Revolutionize your gaming experience with reduced wait times, fast responses, and full immersion.
  • OPTIMIZED FOR XBOX. Xbox Velocity Architecture unlocks the full potential of the WD_BLACK C50, allowing it to achieve blazing-fast performance and seamless, high-speed access to your favorite games.
  • QUICK RESUME SUPPORT. The storage expansion card seamlessly integrates with your console's Quick Resume, enabling instant transition between multiple suspended games — so you can pick up exactly where you left off without delay.
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Manage storage or troubleshoot

For menu-level storage choices or an expansion card the console does not recognize, consult the current Xbox Support guide to using a storage expansion card and its storage-management guidance. Those official pages are the appropriate place to check current interface steps; the manufacturer installation instructions establish automatic setup but do not provide verified menu paths or troubleshooting steps.

Rank #2
Sandisk 1TB Optimus GX C50 Storage Expansion Card for Xbox
  • EFFORTLESS XBOX INTEGRATION. Officially licensed for Xbox Series X|S consoles.
  • ROOM FOR MORE GAMES. Up to 2TB(1) of storage gives you space to grow your library by up to 50(4) more games.
  • NVME SPEED YOU CAN FEEL. Low-latency performance matches Xbox Velocity Architecture, so games play directly from the card.
  • QUICK RESUME READY. Instantly switch between multiple suspended games without losing progress or waiting.
  • XBOX GAME PASS ULTIMATE. Enjoy a 1-month trial with access to hundreds of games across console, PC, and cloud(2).

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.