Is your Steam Deck running out of storage faster than you can download new games? Or perhaps you’re just looking to supercharge your handheld gaming experience with quicker load times and smoother performance? If so, upgrading your internal SSD is one of the best moves you can make! While the Steam Deck is an incredible piece of kit, its internal storage can become a bottleneck for serious gamers. That’s where a high-quality M.2 2230 NVMe SSD comes into play.
Choosing the best SSD for Steam Deck isn’t just about capacity; it’s also about speed, reliability, and ensuring full compatibility with your device. Swapping out the internal drive can feel a bit daunting, but with the right SSD, you’ll unlock a new level of gaming freedom. We’ve handpicked five top-tier options that are perfectly suited for your Steam Deck, offering a fantastic blend of performance and value. Let’s dive in and find the perfect upgrade for you!
1. WD_BLACK 1TB SN770M M.2 2230 NVMe SSD for Handheld Gaming

The WD_BLACK SN770M brings Western Digital’s trusted gaming-focused performance to the compact M.2 2230 form factor, making it an ideal choice for your Steam Deck. This SSD is specifically engineered to supercharge handheld devices, promising lightning-fast game installations and incredibly quick level loads. If you’re looking for a reliable brand with a solid reputation in the gaming storage world, the SN770M is designed to deliver consistent, high-speed performance for all your portable gaming adventures.
-
Key Features:
- First M.2 2230 NVMe SSD from a trusted gaming brand.
- Speeds up to 5,150 MB/s (for 1TB and 2TB models) for fast installations and load times.
- Utilizes trusted Western Digital TLC 3D NAND storage.
- Compatible with Steam Deck, ASUS ROG Ally, and various M.2 2230 laptops.
- Backed by Western Digital’s 5-year limited warranty.
- Supports Western Digital Dashboard software (Windows only) for drive health monitoring.
-
Pros:
- Excellent speeds for handheld gaming.
- From a highly reputable storage brand.
- Specifically marketed for handheld devices like the Steam Deck.
- Good balance of performance and capacity for most users.
- Comes with a solid 5-year warranty.
-
Cons:
- Dashboard software is Windows-only, limiting utility for Steam Deck users.
- Only available up to 2TB, which might be limiting for some power users.
-
User Impressions: Users frequently praise the WD_BLACK SN770M for its seamless compatibility and noticeable speed improvements in their Steam Decks and other handhelds. Many appreciate the brand’s reliability and the peace of mind offered by the long warranty. It’s often cited as a straightforward and effective upgrade.
2. SABRENT Rocket 2230 1TB NVMe SSD – PCIe Gen4 M.2

Sabrent has made a name for itself with high-performance storage solutions, and the Rocket 2230 is no exception. This compact powerhouse is tailored for devices like the Steam Deck, offering cutting-edge Gen4 performance in a tiny package. Unlike some OEM drives, the Sabrent Rocket 2230 is a retail-grade product, meaning you get full warranty support and access to useful cloning software, making the upgrade process smoother and more reliable.
-
Key Features:
- Compact M.2 2230 form factor for Steam Deck, Surface Pro, and ultrabooks.
- High-speed PCIe Gen4 performance up to 5GB/s sequential reads and 800K IOPS.
- 1TB capacity for ample game storage.
- New Gen4 NVMe controller and premium 3D TLC NAND.
- DRAM-less with HMB support for low power usage and cool operation.
- Includes Sabrent Acronis True Image cloning software and firmware update support.
-
Pros:
- True retail-grade product with full support.
- Excellent Gen4 speeds for rapid loading.
- Efficient power usage helps battery life.
- Included cloning software is a huge bonus for easier migration.
- Ideal for expanding internal storage on space-limited devices.
-
Cons:
- Speeds are slightly lower than the very fastest Gen4 drives available.
- 1TB might not be enough for those with massive game libraries.
-
User Impressions: Many users highlight the Sabrent Rocket 2230 as a fantastic upgrade, often mentioning the tangible speed improvements and the ease of installation. The inclusion of cloning software is a frequently praised feature, simplifying the migration process for many. Its cool operation is also a plus for handheld devices.
3. Addlink New S91 2TB 2230 NVMe High Performance PCIe

For those who crave massive storage without compromising on speed, the Addlink New S91 2TB M.2 2230 SSD is a compelling choice. This drive pushes the boundaries of capacity for the tiny 2230 form factor, allowing you to load up your Steam Deck with an enormous library of games. It doesn’t skimp on performance either, offering impressive PCIe Gen4 speeds that ensure your games load quickly and efficiently, making it a great overall package for serious Steam Deck enthusiasts.
-
Key Features:
- PCIe Gen4x4 interface, backward compatible with Gen3x4.
- Read/Write speeds up to 5000/3200MB/s.
- 2TB capacity, ideal for large game collections.
- Designed for M.2 2230 form factor, compatible with Steam Deck, ROG Ally, and laptops/tablets.
- Supports SLC Caching & HMB (Host Memory Buffer), SMART, TRIM, Thermal Throttling, SmartECC.
- Compact dimensions: 30(L) x 22(W) x 2.15 (Max. H) mm.
- Backed by a 5-year limited warranty.
-
Pros:
- Generous 2TB capacity in the small 2230 form factor.
- Strong PCIe Gen4 performance for gaming.
- Comprehensive feature set for drive health and efficiency.
- Competitive pricing for its capacity and speed.
- 5-year warranty offers good peace of mind.
-
Cons:
- Sequential write speeds are a bit lower compared to some top-tier Gen4 drives.
- Addlink may not be as widely recognized as some other brands, though quality is generally good.
-
User Impressions: Users highly appreciate the 2TB capacity of the Addlink S91, which significantly expands their game library on the Steam Deck. They report noticeable improvements in loading times and overall responsiveness, finding it to be a reliable and high-value upgrade, especially for its price point.
4. Corsair MP600 MINI 1TB M.2 NVMe PCIe x4 Gen4 2230 SSD

The Corsair MP600 MINI 1TB is a pint-sized powerhouse, designed to deliver extreme Gen4 storage performance to compact devices like your Steam Deck. Corsair is a well-regarded name in PC components, and this SSD lives up to that reputation, offering some of the highest sequential read and write speeds in the 2230 form factor. If you’re chasing every last bit of performance for the fastest possible game loading and system responsiveness, the MP600 MINI is definitely one of the best SSDs for Steam Deck in its class.
-
Key Features:
- Compact M.2 2230 form-factor, fully compatible with Steam Deck, ROG Ally, MSI Claw, and Surface.
- Extreme Gen4 storage performance: up to 7,000MB/sec sequential read, 6,200MB/sec sequential write.
- High-Speed PCIe 4.0 x4 NVMe 1.4 M.2 interface for maximum bandwidth.
- High-Density 3D TLC NAND for an ideal mix of performance and endurance.
- Makes your PC (or Steam Deck) faster: quicker game loads, boot times, file transfers.
-
Pros:
- Blazing-fast Gen4 speeds, among the best for the 2230 form factor.
- Reputable Corsair brand for quality and support.
- Excellent for maximizing game loading and overall system responsiveness.
- Robust 3D TLC NAND for durability and long-term performance.
-
Cons:
- Premium performance often comes with a premium price tag.
- 1TB capacity might be insufficient for very large game libraries.
-
User Impressions: Users consistently praise the Corsair MP600 MINI for its incredible speed, noting significant improvements in game loading times and system boot-up on their handheld devices. The reliability associated with the Corsair brand is also a frequently mentioned positive. It’s often recommended for those prioritizing raw performance.
5. Corsair MP600 CORE MINI 2TB M.2 NVMe PCIe x4 Gen4 2230 SSD

For those who prioritize massive storage capacity along with impressive Gen4 speeds, the Corsair MP600 CORE MINI 2TB offers the best of both worlds for your Steam Deck. This drive provides a huge amount of space, allowing you to install a vast array of AAA titles and indies without constantly juggling your game library. While its speeds are slightly less extreme than its “MINI” sibling, it still delivers excellent performance for a smooth gaming experience, making it a stellar choice for power users with expansive game collections.
-
Key Features:
- Compact M.2 2230 form-factor, fully compatible with Steam Deck, ROG Ally, and Surface Pro.
- Impressive Gen4 storage performance: up to 5,000MB/sec sequential read, 3,800MB/sec sequential write.
- Generous 2TB capacity for extensive game libraries.
- High-Speed Gen4 PCIe x4 NVMe 1.4 M.2 interface for strong bandwidth.
- High-Density 3D QLC NAND for an ideal mix of performance and capacity.
- Designed to make your PC (or Steam Deck) faster across the board.
-
Pros:
- Massive 2TB capacity in the small 2230 form factor.
- Still offers very good Gen4 speeds for quick game loading.
- Ideal for users who want to avoid constant game installation/uninstallation.
- Reliable Corsair brand quality.
- Excellent balance of capacity and performance for most users.
-
Cons:
- Uses QLC NAND, which can have lower endurance and slower sustained writes compared to TLC, though unlikely to be an issue for typical gaming.
- Speeds are lower than the top-tier Corsair MP600 MINI.
-
User Impressions: Users absolutely love the sheer storage volume provided by the Corsair MP600 CORE MINI, praising how it transforms their Steam Deck into a true portable game library. They find the performance to be more than adequate for gaming, appreciating the convenience of having so many games ready to play at any time.
Frequently Asked Questions (FAQ)
Q1: Why should I upgrade my Steam Deck’s internal SSD?
A1: Upgrading your Steam Deck’s internal SSD significantly improves game loading times, reduces stuttering in some games, and most importantly, expands your storage capacity. The stock SSDs, especially the lower-capacity ones, can fill up quickly. A larger, faster SSD ensures you can carry more games and enjoy a smoother experience.
Q2: Is it difficult to replace the SSD in a Steam Deck?
A2: Replacing the Steam Deck SSD requires opening the device and handling sensitive internal components. It’s generally considered a moderate difficulty task. Valve recommends against user repair for most users due to the risk of damage, but many tech-savvy individuals successfully perform the upgrade. There are numerous detailed video guides available online to walk you through the process step-by-step.
Q3: Will upgrading my Steam Deck SSD void my warranty?
A3: Valve’s official stance is that while opening your Steam Deck won’t automatically void your warranty, any damage incurred during the process of opening or modifying the device will not be covered. Proceed with caution and at your own risk.
Q4: What size SSD do I need for my Steam Deck?
A4: The Steam Deck uses an M.2 2230 NVMe SSD. The “2230” refers to its dimensions (22mm x 30mm). It’s crucial to get this exact form factor, as larger M.2 SSDs (like 2242, 2260, 2280) will not fit. All the options listed in this article are the correct M.2 2230 size.
Q5: What’s the difference between PCIe Gen3 and Gen4 SSDs for Steam Deck?
A5: PCIe Gen4 SSDs offer higher theoretical maximum speeds than Gen3. While the Steam Deck supports Gen4, in many real-world gaming scenarios, the difference in loading times between a fast Gen3 and a Gen4 SSD might be negligible due to other system bottlenecks. However, for future-proofing and the absolute fastest performance, Gen4 is generally preferred.
Q6: Can I just use a microSD card instead of upgrading the internal SSD?
A6: You can use a microSD card to expand storage, and it’s much easier than replacing the internal SSD. However, microSD cards are generally much slower than internal NVMe SSDs, leading to longer game loading times and potentially less smooth gameplay for demanding titles. An internal SSD upgrade provides the best performance.
Q7: What tools do I need to replace the Steam Deck SSD?
A7: You’ll typically need a small Phillips head screwdriver (PH00 or similar), a spudger or plastic pry tool to open the casing, and potentially anti-static tweezers. An ESD (Electrostatic Discharge) wrist strap is also recommended to prevent static damage to components.
Q8: Do I need to reinstall SteamOS after upgrading the SSD?
A8: Yes, after installing a new, blank SSD, you will need to re-image SteamOS onto it. This involves downloading the SteamOS recovery image from Valve’s website and flashing it to a USB drive or microSD card, then booting your Steam Deck from that drive to reinstall the operating system.