1/4' / XLR Combo Jax Switchcraft 1/4' / XLR Combo Jax combines two of the most common audio connectors into a standard D-size package. This makes it an excellent space-saving option for any compact electronic design. These Jax connectors offer various mounting options and are available for maximum flexibility, including solder and PC contacts. The combo Jax connectors are available in vertical PCB mount, horizontal PCB mount, and solder contacts mounting options. These jacks feature gold-plated contacts, a silver-plated ground spring, and rugged thermoplastic housing. The 1/4' / XLR combo jacks are suitable for audio applications.