Superior design and uncompromising quality control enabled Supermicro to offer high-end products with unsurpassable performance to the market. With this unbeatable track record, Supermicro has earned a reputation as a manufacturing leader in the industry. Supermicro strives to build long-term relationships with customers by providing them with outstanding engineering innovations, quality, availability, and reliability in today's mission-critical fast-paced e-world. PRODUCT FEATURES: 280W High-efficiency Power Supply; 4x 1" Hot-swap SAS / SATA Drive Bays; 1x Slim CDROM Drive (Optional); 4x 4cm 12, 500 RPM Fan; 1x Full-height, Half-length I/O Expansion Slot; Power Switch / Reset & 5 LED Indicators.