I had similar dilemma with Adata being the only option with 256GB in my country and then I read alot till I decided to buy http://www.amazon.com/MyDigitalSSD-256GB-Super-Boot-Drive/dp/B00NY4VIPA/ref=sr_1_2?s=electronics&ie=UTF8&qid=1435777522&sr=1-2&keywords=mydigitalssd+m.2&pebp=1435777525915&perid=1JC9AGJ060WQQ5NXK8N3 and had no issues with installing it (the only thing was that I had to switch from UEFI to Legacy for the installation). Good speeds. Price is little above the ADATA, so I don't regret buying it, since Adata doesn't advertise such speeds.