To ensure legal entry and operational safety in international markets, products must have CE, FCC, and RoHS certifications. Specifically for HDMI products, verify that the factory is an HDMI Adopter to avoid intellectual property disputes. Furthermore, HDCP (High-bandwidth Digital Content Protection) compliance (version 1.4 or 2.2/2.3) is critical; without it, the splitter will fail to display protected content from sources like Blu-ray players or streaming devices. Always request test reports from accredited third-party labs to confirm electromagnetic interference (EMI) shielding.