I have a SimpleTech external drive that hasn't been used in a few months. I went to retrieve some pictures from it, and it would not power up once plugged in. I know enough to know that the data is still there, so I did a bit of research. Learned that I can connect a SATA to USB adapter to retrieve my data. I cracked open the case, and it looks like I have a Western Digital Caviar HD...Green Power. Went to buy a SATA/USB adapter from Radio Shack...they've closed down. Best Buy was my only other option. The Geek plugged it in and said my data was still there and I would be good to go with the SATA/USB adapter (SATA Wire 3.0 "Notebook Drive Upgrade Kit" by Apricorn). I asked if I would need any sort of power cord...since it originally required one. He said, "no." Got home. Plugged the wire into the HD and then plugged into my main desktop. Nothing. It's seems to me I probably need some sort of power source. Can someone confirm and help me identify the type of cord that would give me power?