Cooler Master N300 NSE-300-KWN1 Midnight Black Polymer, mesh front bezel ATX Mid Tower Computer Case Compatible with Standard ATX PS2 (not included) Power Supply Computer Cases - Newegg.com
Cooler Master N400 Mid-Tower Fully Meshed Front Panel Computer Case - Midnight Black (NSE-400-KKN2) - Walmart.com
Cooler Master N300 and N500 ATX Mid-Tower Cases
Cooler Master N300 Mid Tower Computer Case - Black for sale online | eBay