WD 1TB My Passport Portable Hard Drive USB 3.0 Model WDBYNN0010BRD-WESN Red Dimensions: 0.64 x 4.33 x 4.33 Weight: 0.37 lb. Package Contents: Portable hard drive x0AUSB 3.0 cable x0AWD Backup, WD Security and WD Drive Utilities software x0AQuick install guide