This MHL to HDMI adapter cable is specifically designed for the Samsung Galaxy S3 i9300, allowing you to connect your device to a larger screen such as an HDMI television. The adapter features a specialized pin connection engineered for the Galaxy S3 and creates an HDMI output through your phone's micro USB port. Measuring approximately 7.25 inches in length, this compact and lightweight adapter supports simultaneous charging and media playback, automatically switching between USB data modes and MHL audio and video modes. The adapter supports all video resolutions up to 1280 x 720p and digital audio formats including 1080p video output. To use, simply connect an HDMI cable between the adapter and your TV, plug in your original travel charger to the adapter and power source, then connect the adapter to your device's micro USB port. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.