Features: brand new and high quality Designed for PRIMERGY rack, tower and blade servers, ETERNUS storage system and FibreCAT disk systems. For server 2.5" hot-swap tray or hard drive (HDD) bracket for SAS, Sata hard disks, these are the black and green ones used in the newer Primegy series, S5, S6 S7 series. For server 2.5" hot-swap tray or hard drive (HDD) bracket for SCSI, SAS, Sata hard disks. Package Included: 1 x 2.5" Hard Drive Caddy & Mounting Screws. The part numbers used to identify this part are A3C40058359, A3C40058356 and A3C40092312. Specifications: Product Name: For server hard drive tray Model: A3C40101974 Size: 2.5" Size: approx. 19x11cm/7.48x4.33in Hard disk interface: SAS, Sata , SCSI Package Includes: 1 x 2.5 HDD Caddy 4 x Screws note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurements.