The Front Panel
The front panel of the Corsair Carbide 300R has three external 5.25” bays. The covers for these bays are solid.
The case comes with one 140 mm fan on its front panel, featuring an air filter, and it supports the installation of another 120 mm or 140 mm fan. This fan uses a standard three-pin fan power connector, but the manufacturer doesn’t publish technical specifications for it.
The case comes with two USB 3.0 ports and the traditional audio jacks on the top part of the front panel. The USB 3.0 ports use an internal USB 3.0 connector.