Thermaltake Max 2504 SATA HDD Rack solution is suitable for using in 5.25” driver bay and maximizing the numbers of 2.5” hard disks in a single 5.25” drive bay. To prevent unauthorized data access, the Max 2504 is special designed with security safeguard key lock. Additionally, with the removable tray design and hot-swap / hot-plug capabilities, the Max 2504 allows users to quickly retrieve the hard drives without even open their computer case, and eventually makes switch hard drives easier than ever.