The IO Crest 5.25" Trayless SATA III 3.5" HDD Mobile Rack Components SY-MR-35SOF allows for easy installation and removal of 3.5" SATA III hard drives without the need for a tray. The compact design and SATA III compatibility make it a versatile option for expanding storage capacity in desktop computers. With its durable construction and reliable performance, this mobile rack is a convenient and practical solution for managing your data storage needs....Box is not sealed but drive bay is factory sealed. Opened for pictures ( box, not sealed drive inclosure)