Specifications:Product Name :DB9 AdapterTerminal Wire Range: 22-14AWGTotal Size :40 x 36 x 14.5mm/1.6" x 1.4" x 0.57"(L*W*H)Fixing Hole Diameter:3mmFixing Hole Center Distance:29mm/1.2"Material :Metal, Electric PartColor :GreenWeight :14gPackage Content:1 x DB9 AdapterFeatures:Mounting Type: Positioning NutsDB9 female adapter, RS232 Serial DB9 9pin to 9 Position Screw Terminal Block Connector.The signal line was all lead out, name and number clearly labeled.Using industrial grade DB9 , it is stable and reliable.With or without base socket is choosable, and it fit for C45, 35mm DIN rail mounting.22-14AWG wire range, 3.96mm pitch, 2mm screw diameter, you need use the 2mm width slot screwdriver.All-copper DB9 Socket, anti-oxidation, contact better.The adapter used for communication debug.