The RSC-RR1U-E16 Supermicro 1U PCI-E x 16 riser card is a passive design RAID controller card specifically designed for Supermicro brand servers. It supports both Gen 2 and Gen 3 technologies, making it compatible with various server models such as SC811, SC812, SC813, SC815, SC502, SC512, SC113, SC111. With its PCI port compatibility, this riser card allows for easy expansion and increased performance in server systems. Made in China, this high-quality component is essential for enhancing the functionality of Supermicro server setups.