1x Micron 7400 PRO 3.84TB M. PBW (TBW in PB). Included in the price. ETA 3 to 5 busines. We offer a 30 days satisfaction guarantee. You are responsible for the return costs, unless the item(s) arrived damaged or faulty. We guarantee you a Five-star shopping experience with us. Customer Service Hours: Monday to Saturday 9:00 a. M to 6:00 p.