The Front Panel
The front panel of the Corsair Carbide Series 400R has four external 5.25” bays, all using meshed covers with air filters.
The buttons and connectors of the case are located on the front panel. The 400R comes with two USB 3.0 ports, one FireWire port, and the traditional audio jacks. The USB 3.0 ports use an internal connector, so you won’t need to connect them to the motherboard external USB 3.0 ports. If your motherboard doesn’t have an internal USB 3.0 connector, you can install the USB 3.0 ports to a USB 2.0 header, thanks to the adapter that comes with the product.
At the bottom part of the front panel, the 400R comes with two 120 mm sleeve bearing fans, and there is a washable air filter in front of them. These fans glow in white, and you can turn their LEDs off by pressing a button located on the top part of the front panel. See Figure 5. Unfortunately, the manufacturer doesn’t publish the technical specifications for these fans, and the original manufacturer sticker was replaced by a sticker that has only the Corsair logo. These fans are connected to a standard peripheral power connector, so you can’t monitor their speed.