The FineJoin D2184BL is an industrial-grade 4-Channel UHF RFID Fixed Reader engineered for automated sorting, asset tracking, and smart locker logistics. Powered by the high-performance Impinj E series chipset engine, this rugged reader supports ISO 18000-6C (EPC Gen2) protocols and features 4 independent TNC antenna polling ports, achieving an long-range read distance of up to 15 meters and a tag parsing rate of 650 tags/second. Built with a heavy-duty IP65-rated aluminum enclosure, it delivers exceptional flexibility with integrated PoE power options, industrial serial networks (RS485/RS232), RJ45 Ethernet, and a customizable 12-pin terminal block supporting double relay GPIO loops. Complete secondary development DLL host libraries and demo applications are fully provided.