The DELL 210Y6 is a dual SD card reader module designed specifically for the Dell PowerEdge M520 and M620 server models. It allows for the use of two SD cards simultaneously, providing a reliable and flexible solution for hypervisor redundancy and booting purposes. This module enhances server uptime and reliability by facilitating mirrored SD card configurations, ensuring that in the event of a primary SD card failure, the secondary SD card can take over without service interruption. It supports standard and high-capacity SD cards, making it a versatile option for various operating system and application needs. The module's compact form factor seamlessly integrates into the M520 and M620 servers, maintaining the system's overall space efficiency. This SD card reader module is a practical addition for users seeking to enhance their server's stability and boot reliability, making it an essential component for creating a resilient, efficient, and secure server setup.