NEW FACTORY SEALED IN BOX NEVER OPENED Seagate 3TB Backup Plus 3.0 USB External Desktop Drive STCA3000600 PC MAC originally purchased from Costco in 2012. Removed from Costco in-store card for photos and shipping ease but I've included a photo of the Costco card tag/barcodes.Please see all photos for compatability and technical information.Again, box is FACTORY SEALED and NEVER OPENED OR USED. Box is also in mint condition after being stored in a dark air conditioned closet for the last 10+ years, untouched.Comes from a smoke and pet-free home.