... to 12.5mm Large heatsink for passive cooling Fanless design SK-2500 800+The SK-2500 laptop hard drive enclosure provides ... drives up to 12.5mmLarge heatsink for passive coolingDurable, compact and portableStackableFanless design SK-2500 800+ 2.5 enclosure FW800, eSATA, usb2 ... .0, SUPPORT 12.5MM hdd