Pentax K-AC8U AC Adapter Kit for Optio S6, S4i, S5i, SV, 750Z, S5z, WPi & WP Digital Cameras Compatible with the Optio S, S4i, S5i, and SV Provides immediate power when battery charge runs out Plugs into any standard power socket Supplies uninterrupted power for your camera while downloading pictures to your computer, viewing images while camera is connected to your TV or VCR, etc.