A-Data XPG GAMMIX S11 Pro M.2 AGAMMIXS11P-512GT-C 512 GB

Flagship product at the price of a regular SSD

The Gammix S11 SSD is one of the fastest drives in the A-Data range. It features an ultra-fast PCI-E 3.0 4x interface, delivers serious read/write speeds (up to 3500/2300MB/s), and greatly outperforms SATA 6Gb/s. Utilizing 64-layer 3D NAND flash, 2nd generation memory, and the well-received SM2262G controller, this drive delivers stable and reliable performance at extreme speeds.

Stylish red radiator

The S11 Pro is covered in a stylish black and red heatsink with the XPG logo, it is a rather thick embossed aluminium plate that reduces the temperature during operation by 10 to 15 degrees. With SLC-type caching, DRAM cache buffer and LDPC ECC technologies, the device provides high speed and data integrity during the most intensive game, data transfer, system overclocking and other demanding operations. Separately, it must be said that the XPG Gammix S11 Pro SLC caching algorithms are built in a special way. The data that got into the cache is transferred to the main memory array with some delay. This makes it possible to speed up not only writing, but also reading operations when accessing newly written files. However in fact this is more important for beautiful numbers in synthetic tests than for real life.

Potential competitor of market leaders

But something else is important here. Due to the rather modest price of the XPG Gammix S11 Pro, it looks like one of the most interesting solutions among the offers of second- or third-tier companies. In particular, the claimed performance characteristics of this SSD are such that it can be considered almost a direct competitor to the top-end WD Black SN750 and Samsung 970 EVO. At the same time, it has a longer time between failures (2 million hours versus 1.5 million for Samsung 980 and 1.75 million for WD Black), and slightly higher TBW.