Home / Control Panels / Accessories / Option Cards / Advanced AX-PENN/ST4 Advanced AX-PENN/ST4 $203.72 Peripheral Bus Expansion Network Node – Style 4 Out of stock Request a Quote This product is already on your Quote Request Browse your Quote Request Factory NewBrand: Advanced FireAlarm.com Part #: 11426 Categories: Accessories, Option Cards Manufacturer Part #: AX-PENN/ST4 Specifications Resources Information Manufacturer Advanced Electronics Ltd. Brand Advanced Condition New Production Status Active