PTZOptics 25′ DB9 Extender SKU: DB9MF25 Please log in to see price or purchase this item Quantity discounts available QuantityPrice The 25 foot DB9 Extender gives you the ability to extend your RS-232 cable over a longer distance. Details The 25 foot DB9 Extender gives you the ability to extend your RS-232 cable over a longer distance. Details Back DetailsThe 25 foot DB9 Extender gives you the ability to extend your RS-232 cable over a longer distance.