The Ubiquiti PBE-M5-400 is a high-performance, outdoor 5GHz wireless bridge designed for Point-to-Point (PtP) or Point-to-MultiPoint (PtMP) networks, featuring an integrated 2x2 MIMO 25dBi dish antenna with Ubiquiti's InnerFeedTM technology that merges the radio and antenna to eliminate cable losses. It offers high throughput with a powerful 560MHz Atheros processor, 64MB RAM, and a single 10/100/1000 Gigabit Ethernet port, utilizing the TDMA airMAX protocol for low latency and high scalability in noisy outdoor environments. The device is built for ruggedness and ease of installation with a corrosion-resistant, all-in-one design and a 24V Gigabit PoE injector for power and connectivity.