I just bought two of these babies, it's like getting the HD case, power supply and backup software for free. 3TB of Seagate goodness! Now I do not have to pester my wife to backup her data to the network shared drive, not that I could not have automated that process, but dedicated devices such as the Seagate Backup Plus Desktop Drive 3TB 3.5in USB3.0 External Hard Drive are a no-brainer for the simplicity, reliability and low cost of $110 Cdn.
You got an excellent buy. I paid more than you did for a 2TB external drive, and I still believe it was worth it. I've already backed up my computer on it.