No official data apart from what ive found based on early adopters usage. They say they are fine for 24/7, as long as you do large writes/reads, as they seem to be slower than normal hdd's based on random seek/write times. A few have commented that the speed seems to be reduced greatly in hot environments. Again nothing backed up with evidence so take lightly. People report around a good 150 write speed. I am hoping to Raid 0 two up as a recording drive for 21:9 game captures at 60fps with 5.1 sound for editing later. If I find any real statistics I will link them over as I am still debating if they will truly suit my needs, or if I should invest in smaller, but proven faster drives for raid.