Home  ›  2.5-Inch SSDs (MLC)  ›  AData  ›  SX900


AData dubbed the SX900 as the “most powerful SSD on earth.” That would be arguable because of the presence of other high-end SSDs like Patriot’s WildFire or OCZ’s Vertex 3. But with a maximum read and write speeds of 540 MB/s and 530 MB/s respectively, it might have something to say. The SX900 offers slight improvements over the SP900 in terms of power consumption.

The SX900 is available in four capacities namely 64 GB, 128 GB, 256 GB and 512 GB. Each of these variants come with a three-year warranty and has a Mean Time Between Failure of 1,000,000 hours. The SX900 is a Multi-level Cell (MLC) Flash SSD using the SATA III 6 GB/s interface. It follows a form factor of 2.5″ but comes with a 3.5″ inch bracket for easy installation. Features include support for TRIM commands as well as RAID. Besides the bracket, every SX900 SSD comes with an Acronis True Image HD software and a Disk Migration Utility.


  • Sequential Read: Up to 540 MB/second
  • Sequential Write: Up to 530 MB/second
  • NAND type: MLC
  • Interface: SATA 3 6GBps
  • Controller: SandForce SF-2281
  • Form Factor: 2.5 inches
  • DRAM Cache: None
  • Power Consumption (Active): 3W
  • Power Consumption (Idle): 0.6W
  • TRIM support: Yes
  • SMART support: Yes
  • Warranty: 3 years
  • MTBF: 1,000,000 hours

Price Comparison:

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If you’ve seen one SF-2281 drive with synchronous NAND, you’ve seen them all. From a performance perspective, the ADATA XPG SX900 is as fast as every other SF-2281 SSD with synchronous NAND. The only thing that separates ADATA from the competition is the fact that they have disabled RAISE and hence offer 8GB more capacity than other drives.


ADATA really has a good SSD in their hands with the the SX900 series. We really are a little surprised though that after everything that has happened with the SandForce 2200 series controllers and their firmware issues that ADATA actually pursued this controller as a basis for their most high performing product.


At a price of about $110, the drive offers good performance at a cost a little bit lower than other drives of similar performance. The SandForce SF2281 controllers along with the NAND memory can be manufactured cheaply, which in turn lowers cost to the consumer.


Overall, I am quite pleased with the performance of this drive. It keeps right up with its competitors, beats them in some testing,  and it has some extra space available.

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