Used Silent Knight SK 5210 zone expander for SK 5207. Used in working condition.

Silent Knight Sk-5210 zone expander card for the SK-5207 fire alarm panel. Card was in good working condition at time of removal for system replacement. Also have the aluminum mounting plate that goes over the power supply.

This listing is for one used functional silent knight 5210 zone expander board. 3, gate code 05/91. This came out of system that was recently upgraded.