Fractal Design's Arc Midi R2 case retains the minimalist Scandinavian design of the first generation Arc Midi chassis but with several key improvements. The Fractal Design Arc Midi R2 changes the HDD cage configuration from a 4+4 layout to a more SLI/CrossFireX friendly 5+3 stack that can be adjusted to face the front or sides. The bundled fan controller on the original Arc Midi case is now integrated at the front I/O, taking the space once occupied by a USB port. The Arc Midi R2's built-in fan controller has three speed settings and can adjust the three pre-installed 140mm fans. Unlike other mid-tower cases, the Fractal Design Arc Midi R2 is accommodating to liquid-cooling enthusiasts and has been designed to support a pair of 240mm or 280mm (15mm spacing) at the same time on the front and top. Large tower-style air-coolers up to 180mm tall and video cards up to 430mm long are also supported inside the spacious 230 x 460 x 515mm (W x H x D) interior of the Arc Midi R2.