Ubiquiti PBE-5AC-400-ISO PowerBeam AC ISO 5GHz 25dBi 400mm ISO 450+Mbps 25+km Ubiquiti PowerBeam AC ISO PBE-5AC-400-ISO-US 5GHz 25dBi 400mm airMAX AC Bridge with RF Isolated Reflector, 450 Mbps ncorporating advanced engineering with proprietary airMAX ac technology, the PowerBeam ac ISO is ideal for deployments requiring maximum performance and RF isolation. airMAX ac products offer improved latency, noise immunity, scalability and significantly increased throughput performance. The integrated isolator design improves RF isolation to spatially filter out interference, and the metal-plated interior of the rear housing enhances RF shielding. Compare the two near-field plots, and note the superior performance of the integrated RF isolator.