http://www.snapdeal.com/product/SonyHDE ... 3Fpos=0;48 Coupon Code: SOSFM30 Features: * Password Protection Manger software provides greater data security * Automatic Backup with preloaded Back Up Manager software * USB 3.0 High Speed Transfers * 3x Faster Transfer Speeds with Data Transfer Accelerator software for USB 3.0 * 500GB Capacity with NTFS formatted * External power not needed