Two NGFF SSDs can be inserted at the same time, but only one SSD is recognized at a time. To access the desired drive, toggle the switch to the corresponding position. NGFF interface compatibility The NGFF portion of this riser card supports Bkey or B/Mkey interfaces. It is not compatible with Mkey interfaces. Drive protocol compatibility Supported drives must implement AHCI or NVMe protocols. Drives that do not support AHCI or NVMe are not supported. Product highlights Function: DualSSD insertion with a manual switch to select the active drive Compatibility: Bkey and B/Mkey NGFF interfaces; not compatible with Mkey Performance and operation: One drive active at a time to simplify switching and testing Form factor and design: Compact NGFF riser card for internal PC use Material and build: Designed as a standard riser card with a lowprofile form factor Use scenarios Drive testing and benchmarking in a compact test bench: Insert two SG SSDs, switch to compare performance or test different drives without rebooting Small form factor PC or mini server: Maintain accessible storage options by easily swapping the active drive for boot or data access Field diagnostics and data recovery: Quickly switch between two drives to diagnose issues or recover data without removing and reinstalling components Notes When two drives are inserted, only the drive selected by the switch will be recognized by the system Ensure drives entered into the NGFF slots match the supported Bkey or B/Mkey configurations and use AHCI or NVMe protocols Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.