Cooler Master Centurion 534 RC534KKN2GP Black Aluminum Mesh Mid-Tower Case.The epecial mesh design provides superior airflow and maximum cooling performance. This case is easy to assemble for quick maintenance and upgrade. With five external 5.25-inch, one external 3.5-inch and four 3.5-inch internal drive bays there plenty of room for expanding. This case supports both ATX and micro-ATX motherboards.