The product includes a built in hardware whitelist mechanism from the brand. Tutorials on USB port whitelisting are available, making this suitable for users who need to control connected devices. Key features and benefits Security enhanced: hardware whitelist mechanism helps restrict which USB devices can connect, supporting safer environments. Compact and compatible design: small fast expansion card intended for systems with small PCIe form factors. Flexible power options: supports a small 15pin PCIe style or floppy drive 4pin power supply for compact setups. Safe plug and unplug procedure: when connecting or disconnecting the floppy drive power, first lift the socket upward to disengage the cord from the adapter card, then unplug to reduce wear. Performance across PCIe generations: delivers about 140 MB/s on PCIe 1.0 slots, and over 300 Mbps on PCIe 2.0 slots, with real world results depending on system and drive used. What you get and how it helps Fast expansion with compatibility for small drives and power connectors, ideal for tight builds and legacy setups. Clear, practical safety guidance to protect connectors and cards during installation and maintenance. Performance scaling with PCIe slot version, providing usable speeds for supported devices and configurations. Use scenarios IT security and admin setups: implement USB port whitelisting to control peripheral access in desktops and workstations, reducing risk of unauthorized devices. Small form factor or legacy PC builds: install a compact expansion card that uses a 15pin PCIe style or floppy drive 4pin power supply to support small drives in limited space. Maintenance and upgrades of older systems: leverage PCIe 1.0 and 2.0 compatibility to achieve reasonable transfer speeds with compatible devices, without needing major system changes. Compatibility and notes Expansion card designed for PCIe slots; performance varies by PCIe generation. Power option supports small 15pin PCIe style or floppy drive 4pin connectors. Follow the safe power connection procedure described above to minimize wear and ensure reliable connections.