This NGFF riser card supports Bkey or B/Mkey interfaces and is not compatible with Mkey interfaces. It requires drives that support AHCI or NVMe protocols; drives that do not support AHCI/NVMe are not supported. DualSSD design: two SSD slots accommodated at the same time, but only one SSD is recognized at a time. A switch must be toggled to the corresponding position to activate the desired drive. Benefits and use cases: Enables compact storage expansion by housing two SSDs in a single riser, freeing space in tight builds. Simple, switchbased drive selection allows quick access to either SSD without removing hardware. Suitable for testing, development, data migration, backups, or constrained system builds where multiple drives are needed but only one is active at a time. Practical scenarios: Small form factor PC or workstation where space is limited but you need access to two SSDs. System testing or software development that requires swapping between two drives without reconnecting cables. Backup or data migration setup where you temporarily switch active drives to perform transfers. Key attributes: Function: dualSSD capability with a usercontrolled switch to select the active drive. Compatibility: supports AHCI and NVMe protocol drives; not compatible with non AHCI/NVMe drives. Size: compact dualSSD NGFF riser card designed for spaceconstrained configurations. Material: construction uses standard components suitable for typical PC builds. Performance: supports speed SSDs in AHCI/NVMe mode when paired with compatible drives.