The Dragonfly 300 PCIe QRNG is a hardware-based quantum random number generator designed as a 7cm x 7cm half-height PCIe adapter. Built to NIST 800-90B specifications, the device delivers 300 Mbps of entropy and processes approximately 1,170,000 random numbers per second. It is specifically intended for OEM appliances and simulations, featuring real-time health checks and utilizing a system-level driver tailored for Linux environments.