Home Slickdeals Costco Members: 5TB Seagate Backup Plus Portable Hard Drive $90 + Free... Slickdeals Costco Members: 5TB Seagate Backup Plus Portable Hard Drive $90 + Free Shipping By ARCOM - 16 May 2020 108 0 SHARE Facebook Twitter Go to the deal page: Costco Members: 5TB Seagate Backup Plus Portable Hard Drive $90 + Free Shipping