FSC‑BP119 is a Class 1 long‑range Bluetooth 4.0 dual‑mode USB adapter powered by the CSR8510A10 chipset. Equipped with a 2 dBi RP antenna, it delivers stable wireless connectivity up to 100 meters and supports data rates of up to 3 MBPS. The adapter operates in two modes: HCI mode for seamless integration with native Bluetooth stacks on Windows, Linux, and macOS, and HID mode (Windows only) for enhanced support of BLE keyboards and mice via CSR Harmony Wireless Stack. With plug‑and‑play installation and broad OS compatibility, FSC‑BP119 provides a reliable, high‑performance solution for adding long‑range Bluetooth capability to a wide range of devices.