ORICO SATA3 Aluminium 4 Bay TOOL FREE USB3.0 HDD CASE BLACK [9548U3] Support 8TB x 4= 32TB 4-bay 3.5" SATA HDD enclosure,support 8TB*4=32TB USB3.0 transfer rate up to 5Gbps High Grade Aluminum Alloy and High quality Plastic for its material Tool free, support hot-swap, intelligent sleep Aluminum constitution effectively draws away the heat; protect your Drive with HDD Care Lock