USB‑C to RJ45 Console Serial Debug Cable, specially designed for modern laptops without native DB9 serial port. Built‑in serial‑to‑USB chip. Connect the Type‑C connector to your laptop, and plug the RJ45 crystal head into the Console port of your switch, router or firewall. Use terminal software such as Putty, SecureCRT to establish an RS‑232 serial session for offline operations: initial configuration, password recovery, fault troubleshooting and firmware upgrade. Default serial parameters: Baud Rate:9600, Data Bits:8, Parity:None, Stop Bits:1, Flow Control:None. Wide Compatibility: Cisco, Huawei, H3C, Ruijie, TP‑Link, Ubiquiti and other network devices with RJ45‑Console port. Supports Windows, macOS, Linux.