Corsair Carbide Series Black 400R Mid Tower  Computer Case Built-in compatibility for SSDs in the six hard drive bays gives you the flexibility you need. Front panel includes USB 3.0, Headphone, Mic, and an LED on/off switch. Keep your system cool with up to 10 fan mount locations (four 120mm, six 120mm/140mm) Up to 316mm of length for modern GPUs. Easily accessible dust filters keep the cool air flowing over your valuable components. Captive thumbscrews make it easy to remove your side panels without losing the screws. Install or upgrade your CPU heatsink quickly with the easy-access backplate cutout. Optimize airflow and keep your system neat and tidy using the intelligent cable management system.