2U SuperChassis 213 Supermicro's SC213 chassis provides up to 16 hot-swap 2.5" SAS/SATA hard drive bays, one 5.25" drive bay, one optional slim DVD drive in an efficient 2U form factor designed for the most commonly encountered applications. The chassis is also equipped with a Platinum level redundant 920W/740W, Platinum level digital single 600W power supply for outstanding power savings, and specially designed optimized cooling.