RG58: A standard military-grade, 50-ohm coaxial cable type with a solid or stranded center conductor, a polyethylene dielectric, and a copper/tinned-copper braid shield. It is commonly used for low-loss RF (radio frequency) and Wi-Fi extension applications.

SMA: A compact size ("Sub-Miniature") compared to older, larger RF connectors like BNC or Type-N, with "version A" representing the original design iteration.

Design: It is a 50-ohm, threaded coaxial RF connector designed for high-frequency use (typically from DC up to 18 GHz or higher).