Product DescriptionThis adapter is used to run RS232 data over long distances (up to 100m) using UTP Cat 5e cable to bridge the gap. They are used in pairs and have selectable pin assignment to enable them to be used for a variety of purposes.DB9 Pin Size (Approx.) : 3 x 1.3 x 1.6cm / 1.2" x 0.5" x 0.63" (L*W*T);Adapter Size(Approx.) : 8.3 x 3.3 x 1.5cm/ 3.2" x 1.2" x 0.6"(L*W*T)Color : Beige, Silver ToneWeight : 17g