Thermaltake Max5 Hard Drive Enclosure Active Cooling With Two 80mm Blue LED Fans USB 2.0 eSATA ST0021U. Dual ultra-silent 80mm fans with blue LEDs ensure data integrity during file transferring between external hard disk and the host computer. Easily turn off blue LEDs with built-in switch on the back of the enclosure. High transfer rate with eSATA & USB2.0 interface. Supports for all 3.5? SATA I, II, and 6G Hard Drives up to 2TB. Integrated stand easily twists out for added overall enclosure stability.