Form factor and compatibility NGFF M.2 riser card designed for Bkey or B/Mkey interfaces; not compatible with Mkey interfaces. Form factor: NGFF (M.2) based riser card. Not compatible with drives that do not support AHCI or NVMe protocols. What this product does Provides two SSD slots in a single NGFF riser card while keeping the host connection compact. Allows you to install two SSDs at the same time, with only one drive recognized by the system at any given time. A simple switch selects which drive is currently active and connected to the host system. How it works Two SSD slots are available; you can insert drives into both, but the system will recognize only the drive selected by the switch. To switch drives, toggle the switch to the corresponding position before powering on or while the system is off to avoid detection issues. Important operating notes Only drives that support AHCI or NVMe protocols will be recognized. The switch must be set to the active drive position for the host to access that SSD. Mkey interfaces are not supported by this riser card. Key benefits at a glance Spacesaving dualSSD solution in a compact NGFF riser format. Quick and simple drive switching with a dedicated selector, reducing cabling and clutter. Keeps compatibility with Bkey and B/Mkey drives, expanding potential deployment options in small form factor builds. Practical use scenarios Mini PC or compact workstation: install an OS drive on one slot and a data drive on the other, then switch as needed for maintenance or testing without swapping cables. System testing and development: load different OS images or software environments on separate SSDs and switch between them to compare performance or configurations. Data separation and backup workflows: maintain two SSDs for distinct tasks, rotating which one is active to isolate workstreams or perform controlled backups. Notes for installation and use Ensure the drive interfaces and keys match Bkey or B/Mkey; Mkey drives will not fit or function with this card. Verify AHCI or NVMe support on drives to ensure proper recognition by the host system. When changing active drives, power down the system or follow safe switch operation procedures to avoid data corruption or recognition issues.