Feature:1. Scope of Application: The HDD tray is suitable for 2.5in SAS / SATA hot swap hard drives, to meet your needs2. Applicable Model: The HDD tray is suitable for Dell R740, for R740XD, for R940, for R640, for R540, for R440, for R240, for T440, for T640, for 14G3. Metal Material: The HDD tray is made of metal material, which has been strictly tested before delivery, which is durable and wear resistant4. 4 Screws Supplied: The HDD tray is for 2.5in SFF, not 3.5in LFF. Comes with 4 screws to attach to each tray5. Stable Performance: The HDD tray helps to improve the stability of the hard disk and protect your data securitySpecification:Item Type: HDD TrayMaterial: MetalColor: SilverSize: 2.5inHard Disk Interface: SAS / SATA (general)Applicable Models: For Dell R740, for R740XD, for R940, for R640, for R540, for R440, for R240, for T440, for T640, for 14G.Package List:1 x HDD Tray4 x Screw