The 5G portable 2-card aggregated video single soldier device adopts an embedded system and a high-performance H.265 codec processor, supporting functions such as video capture, encoding compression, transmission, and two-way intercom. The device development is based on advanced H.265 encoding and 5G wireless channel bundling technology, supporting the simultaneous operation of two different operator data card links, solving the problem of 5G coverage blind spots, and achieving 5G/4G integration. Its H.265 (HEVC) ultra-low bit rate, FEC forward error correction, and UDP redundant error tolerance technology ensure the transmission of 1080P video at a bandwidth of 1Mbps. The device supports two network architectures: 5G Independent Networking (SA) and Non Independent Networking (NSA), with faster transmission speed and better carrying capacity. It is compatible with 2G/3G/4G/5G networks and supports SA/NSA dual-mode networks. When various wireless network conditions change suddenly, it can quickly achieve load balancing and achieve stable network transmission.