Hello Digitians Today I got a Seagate 3 TB HDD . It doesn't comes with SATA cable. So I went to a local computer shop and bought a powerless SATA cable worth Rs.30. I want to know this SATA cable can provide 6 Gbps bandwidth (sata 3). If don't how to knew a SATA 3 cable from its look and also say what's the difference between powered and powerless SATA cables. I'm uploading some pictures below . Please help!!