Most important is you need 2 x 6 pin pcie connectors for that gpu.
What psu do you have?
Most good quality psu's come with them.
Unfortunately some entry level and mainstream psu's only come with one pcie 6pin connector.
You may need something like this.http://www.newegg.com/Product/Product.aspx?Item=N82E16812189120&cm_re=pcie_adapter-_-12-189-120-_-Product