Like its award winning predecessor, the nsk 3100 was designed to compliment any home or office with its black matte exterior & sleek front bezel with indirect intake vents. In addition to its striking appearance, the nsk 3100 is constructed of secc steel 40% thicker than competitors in its class. a balance of versatility & durability is achieved by integrating Antecs proprietary Quiet Computing? technology with solid build quality & superior components. The nsk Series 3100 case supports both Micro atx & mini itx motherboards & has ample space for liquid cpu cooling, two 5.25? drives, two 3.5? HDDs, & one 2.5? ssd. It contains two fan mounting points with room for four expansion slots. Finally, the front i/o ports include two USB (Universal Serial Bus) 3.0s & audio sockets.