Superior design and uncompromising quality control enabled Supermicro to offer high-end products with unsurpassable performance to the market since its founding in 1993. 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: 8 x 2.5" Hot-swap SAS / SATA Hard Disk Drive Tray; Overheat LED and Alarm; Fan Failure LED and Alarm; Drive Activity LED; Drive Failure LED; 2 x 5.25" Drive Bay Enclosure; 8cm Cooling Fan Subsystem; 1 x Expander Supporting SAS.