Introducing the Icy Dock MB994SP-4SB-1 Full Metal Quad Bay 2.5" SATA 6Gbps backplane for use in a single 5.25" device bay. This new model uses a SATA 6Gbps interface and adds a fan power switch to control when you need it. The dual 40mm cooling fans in addition to the power switch for the fans allow for the best flexibility - Turn off when using SSD's and on when using mechanical SATA hard drives. The single 4 pin power connector reduces the amount of cables required and making installation simpler. The MB994SP-4SB-1 utilizes our EZ Slide Mini Trays that accommodate 9.5mm & 12.5mm drives which makes drive interchangeability and maintenance completely hassle free. The MB994SP-4SB-1 is made completely of metal to ensure protection of your drives as well as reliability. With it's small form factor the MB994SP-4SB-1 is perfect for use in gaming PCs RAID systems and in small form factor cases where 5.25" bays are limited and large drive capacity or SSD's are needed.