I mean, you will probibly be fine but with a lower end psu like that for something low in power consumption like a gtx 960. there's always a chance it will fail prematurly and damage your other compnents and or have a pc that shuts off in the middle of games/under load. It will most likley work fine but I don't recomend it. And btw how much are you paying for the 960? I have been using this thermaltake psu with 1 6 pin conector thats came bundled with a case that i dont even use anymore and i have had it for around 1.5 years now and it's been working fine with no problems with big cards that use a lot of power. (Currently have an rx 480 fx 6300, 8 gigs ddr3 and a 1 terabyte drive)