Come with Power adapter.

This StarTech.com video converter allows you to transform composite and S-Video signals to HDMI with audio. It is compatible with various resolutions including 1024 x 768, 1280 x 1024, and 1600 x 1200 pixels. The converter is made of plastic material and weighs around 100 grams. It comes with a power adapter and is operated at 5V with a power consumption of 2.5W. The unit has a maximum video resolution of 1600 x 1200 pixels and supports NTSC/PAL analog signal format system. It also comes with CE, FCC, and RoHS certifications.