8728Product Number: 8728 Special Audio, 2 Pair 22 AWG TC, Shielded, CM Audio, 2 Pair 22 AWG stranded (7x30) TC conductors, polypropylene insulation, cabled in pairs, overall Beldfoil®Port 8728 is used by MikroTik RouterOS for API, a protocol for remote management and confuration. Learn more about port 8728, its protocol, service, vulnerabilities, and related ports.