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SanDisk Optimus GX C50 Storage Expansion Card for Xbox Series X|S, 512GB NVMe, SDCEOGN-512G-GNAGX
- EFFORTLESS PLAY. Officially licensed for Xbox Series X|S consoles.
- SUPER SPEED NVME CORE. Ultra-fast, low-latency performance that matches the console's SSD - play games directly from the card.
- OPTIMIZED FOR XBOX. Xbox Velocity Architecture unlocks the full potential of the SANDISK Optimus GX C50 Storage Expansion Card, allowing it to achieve blazing-fast performance and seamless, high-speed access to your favorite games.
- QUICK RESUME. Seamlessly integrates with your console's Quick Resume, so you can pick up exactly where you left off without delay.
- 1 MONTH XBOX GAME PASS ULTIMATE. Enjoy hundreds of high-quality games on console, PC, and cloud. Play together with friends. Get premium member benefits.
- 1 MONTH TRIAL OF DISCORD NITRO. Get the most out of Discord with Nitro and experience its game-changing perk.
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Overview
Specs
Reviews
Overview
The SanDisk Optimus GX C50 Storage Expansion Card adds 512GB of storage for Xbox Series X|S consoles. It is officially licensed for Xbox Series X|S consoles and is designed for playing games directly from the card.
Key Features
- Officially licensed for Xbox Series X|S consoles
- Ultra-fast, low-latency NVMe performance
- Designed to match the console's SSD performance
- Supports Xbox Velocity Architecture
- Seamlessly integrates with Quick Resume
Performance
The NVMe core provides ultra-fast, low-latency performance that matches the console's SSD. Xbox Velocity Architecture enables blazing-fast performance and seamless, high-speed access to games.
Design
The storage expansion card measures 31.6mm wide, 55.4mm deep, and 7.7mm high, with a weight of 25g.
Connectivity & Compatibility
Designed for Xbox Series X|S consoles, the card supports playing games directly from the card and integrates with the console's Quick Resume.
Specifications
- Brand: SanDisk
- Product: Optimus GX C50 Storage Expansion Card
- Model: SDCEOGN-512G-GNAGX
- Capacity: 512GB
- Width: 31.6mm
- Depth: 55.4mm
- Height: 7.7mm
- Weight: 25g
Warranty & Returns
Warranty, Returns, And Additional Information
Return Policies*
- Return for refund within: 30 days
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- Read full return policy for details.
- *Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-866-726-3475
- Support Website
- View other products from SanDisk
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The SANDISK Optimus GX C50 is a 512GB storage expansion card for Xbox Series X|S, suited to players who want more space for games they can play directly from the card with performance designed to match the console’s SSD.
Recommended For
- Xbox Series X|S players who are running short on console storage and want to install and play Series X|S-optimized games from the added storage, rather than repeatedly moving them between drives.
- Series S owners with limited built-in space who want extra ready-to-play room for a small set of current-generation games.
- Players who mainly use Xbox Series X|S games and want expansion storage that works with the console’s storage features, including Quick Resume.
- Players who value a direct console expansion and want to avoid using a separate USB drive and transferring optimized games before playing them.
Real-World Use Scenarios
- When the Xbox Series X|S internal storage is full, install Series X|S-optimized games on the card and play them directly without moving them back to the console drive.
- For players who keep several large or frequently played games installed, use the card as extra ready-to-play space instead of repeatedly deleting games to make room.
- When switching between suspended games stored on the card and games on the console, Quick Resume lets players return to supported games without restarting from the beginning.
- On an Xbox Series S with limited built-in space, use the card to keep more current-generation games installed and playable without relying on a USB drive that may require transfers before playing some titles.
- If a game is already installed on the console, move or copy it to the card to free internal space while keeping it available for play; this can avoid deleting and downloading it again.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Expanding game storage on Xbox Series X|S consoles, with games playable directly from the card |
| Capacity And Storage Type | 512GB solid-state storage |
| Interface And Compatibility | Connects through the Xbox Expansion Slot; NVMe interface and PCI Express x4 connectivity; compatible with Xbox Series X and Series S |
| Gaming Features | Officially licensed for Xbox Series X|S, with Xbox integration and Quick Resume compatibility; supports playing games directly from the card |
| Color | Black |
| Dimensions And Weight | 31.6 × 55.4 × 7.7 mm; 25 g |
| Model Identifiers | SanDisk Optimus GX C50; model SDCEOGN-512G-GNAGX |
Reference Q&A
Q: Should I get this 512GB Xbox expansion card or a USB external SSD?
A: Choose the SANDISK Optimus GX C50 if you want to install and play Xbox Series X|S-optimized games directly from added storage. A USB external SSD can store those games, but Xbox says they generally need to be moved to console storage or an expansion card to play; USB storage can directly run compatible Xbox One, Xbox 360, and original Xbox games.
Q: SANDISK Optimus GX C50 or Seagate Xbox expansion card—which should I buy?
A: Both are expansion-card options for Xbox Series X|S that are designed to provide performance comparable to the console’s internal SSD, so either suits playing supported games directly from added storage. The SANDISK 512GB model is a fit if that capacity meets your needs; compare current prices and available capacities before choosing, since Seagate’s official Xbox listing includes 1TB, 2TB, and 4TB options.
Q: Is the 512GB SANDISK C50 enough, or should I get the 1TB version?
A: Choose 512GB if you want a smaller-capacity expansion and are comfortable managing which games stay installed. Choose 1TB if you want twice the listed capacity for a larger installed library. Both are SANDISK Optimus GX C50 expansion cards; the main stated difference between these configurations is storage capacity.
Q: Can I play Xbox Series X|S games directly from this card?
A: Yes. The card is designed to match the console’s SSD performance, so compatible games can be played directly from it. The product information also states that it supports Quick Resume.
Q: Do I have to move games back to the console to play them?
A: No. Xbox Series X|S games can be played directly from this expansion card, so you do not need to transfer them to the console’s internal storage first.
Q: Is this card compatible with Xbox Series X and Series S?
A: Yes. This 512GB card is officially licensed for Xbox Series X|S. It is made for those consoles’ storage expansion slot, so it is not a general-purpose external drive for other devices.
Q: Is 512GB enough extra storage?
A: The card adds 512GB of storage, making it a reasonable option if you want space for more installed games. Whether that is enough depends on the size and number of games you keep installed; larger libraries may need more capacity.
Q: Is the SANDISK Optimus GX C50 worth paying more for than a regular external drive?
A: It may be worth considering if you want to play Xbox Series X|S games directly from added storage without moving them between drives. The 512GB capacity is the trade-off, and whether the card is worth its price depends on the price you find and how much playable storage you need.



