Home Dealnews Refurb WD 4TB My Book Thunderbolt Duo External Hard Drive for $174... Dealnews Refurb WD 4TB My Book Thunderbolt Duo External Hard Drive for $174 + free shipping By ARCOM - 18 May 2021 69 0 SHARE Facebook Twitter Go to the deal page: Refurb WD 4TB My Book Thunderbolt Duo External Hard Drive for $174 + free shipping