Important Notes: This HDMI splitter (1 input to 2 outputs) is primarily for expanding the original interface on advanced devices, reducing insertion and distance, and minimizing connector damage. This product only supports simultaneous display on two screens of the same model. Different models and sizes of screens do not support simultaneous display but can be used alternately. Wide Compatibility: The HDMI splitter 2-in-1 output cable is ideal for connecting an HDMI-compatible device (HD DVD, PS3, Laptop, HDTV) to two visual output devices (TV, projector, monitor, LCD TV, plasma screen, rear projection screen, digital TV). HD Image Support: The HDMI cable supports 480i, 480p, 720p, 1080i, 1080p. Does not support HDCP and MacBook. Does not work with TV/cable boxes (e.g., Roku, Apple TV box, etc.). Great Quality: Made with gold-plated connectors, soft rubber casing, and other materials; the body is soft and flexible without padding. This product requires no power source. It is recommended to connect the product with a standard HDMI 1.4 or better cable. The length should not exceed 16 feet to avoid signal degradation. Cable Length: 30cm, gold-plated connector, stable data transmission. The interface is a standard HDMI male to female (approx. 14mm wide), the connector is pure copper, non-magnetic, 24K ultra-thick gold plating (super durable).