Product: Stopfen (Plug) for U 3.0 — Application: 3C digital Key benefits Protects U 3.0 ports from dust, dirt and accidental damage, preserving connector reliability. Ensures continued performance of 3C digital equipment by reducing wear on unused ports. Quick to insert and remove for convenient maintenance and transport. What it does Function: simple plug (Stopfen) that seals U 3.0 interfaces when not in use. Standard: designed to meet Norm U 3.0 for direct compatibility with U 3.0 ports. Application area: intended for use with 3C digital devices. Compatibility and fit Fits devices that use the U 3.0 standard; suitable for 3C digital equipment that accepts U 3.0 plugs. Designed to conform to U 3.0 port dimensions to provide a secure closure without obstructing nearby connectors. Practical attributes Purpose-built for protecting connectors during storage, transport, or periods of non-use. Low-profile and unobtrusive when installed, preserving device aesthetics and access. Simple to handle for technicians and end users alike. Use scenarios Protect laptop and docking station U 3.0 ports during shipment or when stored in a bag. Seal spare U 3.0 interfaces on consumer electronics and networking equipment in a busy workshop to prevent contamination. Keep camera, router or peripheral ports covered during cleaning or maintenance to avoid ingress of dust. Why choose this Stopfen Straightforward, standards-based solution for maintaining the integrity of U 3.0 ports on 3C digital devices. Minimizes downtime and repair costs by preventing common connector-related issues.