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The ADATA XPG GAMMIX S55 2TB NVMe PCIe Gen4 x4 M.2 SSD reads at up to 5,000MB/s and writes at 3,700MB/s, drastically reducing load times for games and applications. The 2TB capacity leaves room to install demanding games without watching free space, and the drive is compatible with the Steam Deck, Microsoft Surface and multiple gaming consoles.

The ADATA XPG GAMMIX S55 2TB NVMe PCIe Gen4 x4 M.2 SSD reads at up to 5,000MB/s and writes at 3,700MB/s, drastically reducing load times for games and applications. The 2TB capacity leaves room to install demanding games without watching free space, and the drive is compatible with the Steam Deck, Microsoft Surface and multiple gaming consoles.
Across the GAMMIX S55 series the pitch is performance power in a very small drive, and at 2TB that means keeping a full library of demanding games installed rather than rotating titles on and off. Faster load times and improved efficiency are what the upgrade buys on a PC, alongside enough capacity to stop managing storage by hand.
Across the GAMMIX S55 series the pitch is performance power in a very small drive, and at 2TB that means keeping a full library of demanding games installed rather than rotating titles on and off. Faster load times and improved efficiency are what the upgrade buys on a PC, alongside enough capacity to stop managing storage by hand.

The GAMMIX S55 features a mainstream PCIe Gen4 x4 transmission interface compliant with the NVMe 1.4 standard, and it is compatible with the latest Intel and AMD platforms. Mainstream is the operative word: the drive targets current machines on both sides rather than one vendor's chipset, which is what makes it a useful asset for mobile computing.

The GAMMIX S55 features a mainstream PCIe Gen4 x4 transmission interface compliant with the NVMe 1.4 standard, and it is compatible with the latest Intel and AMD platforms. Mainstream is the operative word: the drive targets current machines on both sides rather than one vendor's chipset, which is what makes it a useful asset for mobile computing.

Sequential read and write speeds of 5,000MB/s and 3,700MB/s put the GAMMIX S55 up to three times ahead of a conventional PCIe Gen3 SSD. It is fully compatible with PCIe 3.0 platforms as well, so an older machine still accepts the drive and the drive can still move to a newer system later on.
Sequential read and write speeds of 5,000MB/s and 3,700MB/s put the GAMMIX S55 up to three times ahead of a conventional PCIe Gen3 SSD. It is fully compatible with PCIe 3.0 platforms as well, so an older machine still accepts the drive and the drive can still move to a newer system later on.

An M.2 2230 form factor makes the GAMMIX S55 easily installable in compact system enclosures, including mini laptops, handheld gaming consoles and tablets, where a full-length card will not fit. It can also replace an existing handheld gaming SSD outright, which is how a handheld goes from a fixed internal capacity to 2TB of usable storage.
An M.2 2230 form factor makes the GAMMIX S55 easily installable in compact system enclosures, including mini laptops, handheld gaming consoles and tablets, where a full-length card will not fit. It can also replace an existing handheld gaming SSD outright, which is how a handheld goes from a fixed internal capacity to 2TB of usable storage.

Verify that the system takes M.2 2230 solid-state drives before making a purchase, because not every M.2 slot accepts the short card. ADATA also states that actual speeds vary based on the software and hardware configurations of individual testing platforms, so the 5,000 and 3,700MB/s figures describe the drive's ceiling on a capable host.

Verify that the system takes M.2 2230 solid-state drives before making a purchase, because not every M.2 slot accepts the short card. ADATA also states that actual speeds vary based on the software and hardware configurations of individual testing platforms, so the 5,000 and 3,700MB/s figures describe the drive's ceiling on a capable host.

Advanced 3D NAND flash technology takes the GAMMIX S55 to generous capacities of up to 2TB and brings various data protection and correction technologies with it. Its TBW (Total Bytes Written) endurance and durability are optimised to fulfil the demands of high-capacity storage, which is the figure that counts when a 2TB drive is written to constantly.
Advanced 3D NAND flash technology takes the GAMMIX S55 to generous capacities of up to 2TB and brings various data protection and correction technologies with it. Its TBW (Total Bytes Written) endurance and durability are optimised to fulfil the demands of high-capacity storage, which is the figure that counts when a 2TB drive is written to constantly.


The GAMMIX S55 is equipped with an SLC cache algorithm, a Host Memory Buffer and LDPC (Low-Density Parity Check) error correction. Between them they enhance system loading times, data caching and stability during transmission, so speed is not gained at the cost of reliability on a drive holding two terabytes of files.

The GAMMIX S55 is equipped with an SLC cache algorithm, a Host Memory Buffer and LDPC (Low-Density Parity Check) error correction. Between them they enhance system loading times, data caching and stability during transmission, so speed is not gained at the cost of reliability on a drive holding two terabytes of files.

The SSD Toolbox keeps firmware up to date and uses S.M.A.R.T. to report drive health status, lifespan, current operating temperature and storage capacity in real time. On a 2TB drive carrying a full library, watching wear and temperature change over months tells you far more than checking how much free space is left.
The SSD Toolbox keeps firmware up to date and uses S.M.A.R.T. to report drive health status, lifespan, current operating temperature and storage capacity in real time. On a 2TB drive carrying a full library, watching wear and temperature change over months tells you far more than checking how much free space is left.

Everything you need to know about this product
This listing is the 2TB version of the XPG GAMMIX S55.
It reads at up to 5,000MB/s and writes at up to 3,700MB/s.
It uses a PCIe Gen4 x4 transmission interface compliant with the NVMe 1.4 standard.
It is built to the compact M.2 2230 form factor.
ADATA lists the Steam Deck, Microsoft Surface and multiple gaming consoles among compatible platforms.
Yes, the GAMMIX S55 is fully compatible with PCIe 3.0 platforms.
ADATA rates it as up to three times faster than conventional PCIe Gen3 SSDs.
It uses advanced 3D NAND flash technology.
It uses LDPC (Low-Density Parity Check) error correction with an SLC cache algorithm and Host Memory Buffer.
Yes, the SSD Toolbox uses S.M.A.R.T. to track health, lifespan, temperature and capacity in real time.
Yes, it can replace an existing handheld gaming SSD to expand usable storage capacity.
It is compatible with the latest Intel and AMD platforms.
AI-Generated Content: These FAQs are generated by an automated AI system and may contain inaccuracies or omissions. Evetech makes no warranties, express or implied, regarding their completeness or reliability. For definitive information, please refer to the manufacturer's official specifications.









Please Note: Product images are for illustrative purposes only and may differ from the actual product.
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