" Supports up to 4 x 2.5\" SATA/SAS HDD/SSD into single external 5.25\" drive bay. Support SATA 6Gbps or SAS 12Gbps (single channel) Eagle-hook lock system & custom made metal key lock keeps drives secure within the enclosure. Removable EZ Slide Mini Tray system for easy maintenance. Dual 40mm Cooling Fans Accommodates 2.5\" drives with 5mm, 7mm, 9mm, 12.5mm & 15mm Height. Rugged Heavy duty full metal construction with suggested applications in Imaging, Medical, and Military systems, Media servers, and IPCs Industry-leading 5 years limited warranty with exceptional customer support"