I/O Ports - 2 x USB 3.0 2 x USB 2.0 ports on front panel giving the user easy access. Cooling - Black chassis with 80mm rear cooling fan included. Chassis - Micro ATX Chassis with a simple design. Side Panel - Intel Approved TAC2.0 thermal chassis. Interior - Black coated interior. The CiT Classic Micro is a budget focused Micro-ATX chassis aimed at business and home office solutions. The Classic Micro is equipped with 2 x USB 3.0 and 2 x USB 2.0 ports on the front I/O panel. The Classic Micro also includes a rear 80mm fan. The Classic Micro is an ideal choice for anyone looking to build an office or home based PC on a budget.