Features: 1.Designed for 2.5in SAS/SATA: This hard drive tray is designed for 2.5in SAS / SATA hot swappable HDD. 2.Widely Compatible: This SAS SATA hard drive carrier is suitable for H3C R2900 R4900 R6900 R2700 R4700 G2 G3. 3.2.5in SFF: This hard drive tray caddy is ideal for 2.5in SFF instead of 3.5in LFF. 4 screws are fixed on each tray. 4.High Stability: This SAS SATA HDD tray caddy improves the stability of your hard disk, protecting your data security. 5.Durable Material: This 2.5in hard drive tray is made from premium metal and ABS material, which is sturdy and highly durable. specification:Item Type: Hard Drive Tray Material: Metal, ABS Applicable Hard Disk Size: 2.5 Inches Hard Disk Interface: SAS / SATA (Universal) Applicable Model: Suitable for H3C R2900 R4900 R6900 R2700 R4700 G2 G3 PackageList:1 x Hard Drive Tray 4 x Screw