Solid, Versatile, Durable, Function and Quiet is the key features of the Vantec EZ Swap 3.5 SATA/SAS HDD Mobile Rack Storage. This design is suited for any System Chassis the Solid Aluminum frame design offers excellent strength and heat dissipation properties. Its sturdy frame also offers the Versatility to add SATA-6Gps or SAS-6Gps HDD. This functional design uses smooth and precise guide rails for easy, accurate docking and Hot Swapping of drives. The informative LED clear Indicator of the Drives Status and the Dual function key lock for power and securing the drive to the carrier. The front mounting ball bearing fan keeps the drive cool. These methodical designs make this EZ Swap 3.5 SATA/SAS HDD Mobile Rack an excellent choice for your use.