Cooler Master CM 690 (RC-690K) Black Mid Tower Case w/ Side Window, All Black Interior

The Cooler Master RC-690-KKN1-GP is designed to keep your system cool, no matter how hard you work it. The top and front are made of a metal mesh to facilitate airflow. Three 120mm fans are installed at the factory, in the front, rear and side. There is room for four more, two on the top, and one each on the bottom and side. You can also add an 80mm fan to the back of the motherboard tray to cool the CPU from both sides.

Each of the five external bays has the same mesh cover and the 5.25" to 3.5" adapter is also. All of the bays have a tool-less design for easy installation. The removable hard drive racks are also tool-less and come with anti-vibration pads for decreased noise. Each of the expansion slots has its own lockdown lever to eliminate screws. Cable routing clips minimize clutter and increase airflow.

To keep the case’s design lines pure the two USB, one FireWire, one eSATA and two audio ports have been put on the top of the case. This also makes them easier to access if the case is beside your desk. The power and reset buttons have been mounted on the side of the front bezel for the same reason.