Review Index:

ADATA XPG SX900 128GB SSD Full Review - Low Cost SandForce

Subject: Storage

Introduction, Specifications and Packaging


With newer and faster SSDs coming to market, we should not forget those capable controllers of yesteryear. There are plenty of folks out there cranking out products based on controllers that were until very recently the king of the hill. Competition is great for the market, and newer product launches have driven down the cost of the older SandForce 2281 SATA 6Gb/sec controller. ADATA makes a product based on this controller, and it's high time we gave it a look:

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The ADATA XPG SX900 launched mid last year, and was ADATA's first crack at the eXtended capacity variant of the SandForce firmware. This traded off some of the spare area in the interest of more capacity for the consumer.

Read on for the full review!


  • Capacity: 64, 128, 256, 512GB
  • Sequential read:  550 MB/sec
  • Sequential write: 520 MB/sec
  • Random read IOPS (up to):  k-IOPS
  • Random write IOPS (up to):  85 k-IOPS


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Fairly standard packaging. The back of the SSD contains a product key for Acronis True Image HD, which can be used to clone your existing OS directly over to the SX900. My favorite part of ADATA's packaging is the included 2.5" to 3.5" adapter plate, which intentionally offsets the SSD as to align the SATA power and data ports to the same relative position as found on a 3.5" HDD. Normally these holes are centered, which limits installation options in cases with SATA hot-swap backplanes.

February 6, 2013 | 08:45 PM - Posted by Anonymous (not verified)

Firmware 5.0.2a still has issues and they were resolved in 5.0.3. The newest SandForce firmware is 5.0.5 and it's very good. Too bad ADATA can't get their firmware act together.

September 9, 2014 | 07:07 PM - Posted by Merry (not verified)

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February 7, 2013 | 03:21 AM - Posted by Jr. Tek Pro (not verified)

I have tested my SSD with newest SandForce firmware 5.0.5
Having troube on that one as well. B-S-O-D :(

You guys can download IOMeter 2010 from

Play around with it and tested 4K random write via IOMeter 2010
See if you have same test result

32G SSD => BSOD, 0xF4
64G SSD => BSOD, 0xF4

bty, can someone tell me where we can download 5.0 B?
One of my friend said 5.0 B will be available shortly.
Is this truth?

February 8, 2013 | 03:27 PM - Posted by ezjohny

I think I'm going to get this SSD for my next build, looks promising and good for the price! I'm a casual PC gamer!

March 28, 2013 | 10:10 AM - Posted by Anonymous (not verified)

ADATA just releases updated firmware for SX900 SSD drive. It is now at Firmware 5.0.7a

March 28, 2013 | 10:53 AM - Posted by Anonymous (not verified)

Adata Firmware 5.0.7a release notes do not metion anything about TRIM being fixed... WTF?

April 15, 2013 | 02:09 PM - Posted by Anonymous (not verified)

"ADATA first with SandForce 5.0.7a firmware, TRIM enabled for ADATA SSDs"

This is the headline I've been seeing, I assume that TRIM issue have been addressed and that this update has fixes found in previous firmware except the one that was pulled from breaking TRIM.

Purchased 2 drives in January 3013. Went online to get info on how to properly setup the OS (enable TRIM etc). Also used the wipe free space feature of ccleaner. CrystalMark always gave me good results except for write speed which is around 250 instead of 500 like the read speed.

Bottom line, I had the expected performance even without this firmware. I'll install it tonight but cant see myself getting much of a boost (write speed).

December 24, 2013 | 06:53 AM - Posted by Lowest Price (not verified)

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