You get what you pay for.
Ok, i'm upping my score.I got a bad read-sector on one adata drive i got last year. Got another one a couple months ago and it's been perfect, w/ 500mb read/write rates every time. Rates on other one were the same, but some benchmarks dipped under 500mb (oh no! sarcasm)i've now had two ocz (one radeon 7) and another toshiba brand. One toshiba has died (it was doa essentially, kept cutting off every 10-20 seconds), the other radeon 7 ocz before toshiba bought them failed to the point the os wouldn't boot. And my adata didn't fail totally, it had a sector or two fail, which happened to be holding system files, but i rma'ed and they gave me the same drive back (i had marked the sectors bad, so after i did that and reformatted, it didn't reproduce, so i judge they fair gave me my feeble drive back (had a distinct scuff label that was there when i sent it in which was still there), which i didn't extremely appreciate. If a sector fails, i want a unique drive, even if it's fair one or two. Quick turn-around and i judge they paid the shipping - i work in it so it's hard to hold track of everything - and i'm getting older and my memories not as excellent as it was ;) i also have a samsung evo 850 1tb. This drive is fair as quick as both of them. Solid 450-500mb read/write rates. Acquire this before it sells out and don't believe the 3d hype, this 2d holds up, minus ~50mb/sec or so - which isn't even consistent, it sometimes benches fair as quick as the evo 850. Don't waste the extra 100 dollars, though i will say, it's the only brand, along w/ kingston, that has never died on me. Great drive over all.