The Black Box Series is the newest design added to Sentey's extraordinary line of chassis. The BX2-4291 V2.1 is a glossy black chassis built in with 4 fans ( 3 of which come with BLUE LEDs) with the option of adding 3 more. It supports Micro ATX & ATX with 2 x USB 2.0 ports along with SD Card Reader, HD Audio and Mic. To top it off, its unique hidden cable system makes it an impeccable chassis to work with. Supports Water Cooling.