It is designed to accommodate up to four 3.5” SATA HDDs, providing reliable cooling and high-speed data transfer. It has a durable aluminum and plastic enclosure that effectively dissipates heat, and an 80mm active fan provides additional cooling for data and disk protection. Key Specifications: Number of supported disks: up to 4 x 3.5” SATA HDD Disk compatibility: SATA I/II/III Bay capacity: up to 10TB per bay, total 40TB Interfaces: USB 3.0 (5 Gbps, backward compatible with USB 2.0 and 1.1), eSATA (3 Gbps) Cooling system: 80mm fan for cooling (with ON/OFF switch) Main materials: Aluminum and