3.5mm K Series Jack Plugs Brought to you by Amphenol, 3.5 mm stereo jack plugs from Amphenol K-Series of audio connectors, offered in satin nickel and black nickel versions. Suitable for many applications that require a high quality 3.5 mm stereo jack plug. All models are highly reliable and excellent quality. Features & Benefits Suits cable 2.5 mm to 5 mm OD Robust diecast metal shell Flexible grommet for cable protection