Dell BOSS-N1 PCIe riser card JVR0M is a boot-device component for a compatible server. It provides a place to mount NVMe M.2 storage drives on the riser card.
The card holds two NVMe M.2 drives, with one positioned on each side. This arrangement lets the card accommodate two drives while keeping them on a single PCIe riser.
The listing identifies the Dell R660xs as a compatible system. The card is intended for BOSS-N1 boot storage configurations.