The UBA-4R-S series from JST Mfg. Co., Ltd. is a right-angle surface mount USB-A receptacle connector designed for high-density PCB applications. These connectors are commonly found in portable devices, embedded systems, and compact electronic modules where space is at a premium and a right-angle orientation is necessary to optimize layout.

If you're working on a project that requires a compact footprint and a reliable connection solution, these connectors are a great choice. One thing worth noting is their robust design; they are built to withstand the rigors of frequent mating cycles without compromising performance. Engineers tend to reach for this when they need a connector that can handle the demands of mobile or industrial environments while maintaining a sleek profile. Another practical observation is their ease of installation; the surface mount design makes them straightforward to integrate into PCB designs, reducing assembly time and complexity.