Features: Product name : DB9 adapter; terminal wire range : 12-24AWG Design : Screw Type;Total Size : 58 x 35 x 21mm/2.3" x 1.4" x 0.83"(L*W*H) Cable Hole Dia. : 5mm/0.2'' 6mm/0.23'' 7mm/0.27'' 10mm / 0.4";Material : Metal,Electric Part Color : Black, Green;Weight : 30g Package Content : 1 x DB9 Adapter With case 3 x Protective cover DB9 weld-free male/female adapter. The shell of the product is made of insulating material and has anti-slip function. All copper base design, pure copper plated joint, fine solder joint, anti plug and pull. Suitable for all kinds of communication, network, electronic equipment port. Product Information: Total Size : 46 x 34 x 20mm/1. 8" x 1. 2" x 0. 71"(L*w*h) Fixing Hole diameter : 3mm; fixing Hole center distance : 6mm/0. 24 inch Material : metal Nickel plated copper needle, electric part; color : black, Green Weight : 27G DB9 male / female connector to screw terminals. High quality RoHS compliant assembly. Wire range: 26-16AWG Connect type: male with Case Material: Base: copper base and plastic part Torque: 0.2Nm (1.7Lb-In.) Pin header and cage: Brass Case: ABS + PC All copper terminal Gold plating technology design, strong electrical conductivity PCB circuit boards Clear wiring serial number design can reduce wiring error rate. No welding Screwdriver connection can be used repeatedly Easy to use ,No welding required: Step 1: Prepare materials and tools. Step 2: Turn the switch on from the side with your hand Step 3: Install the cable according to the number on the PCB and screw it down Step 4: Cover the case .Finished Applications Industrial control equipment, radios, computers, tax control machines,automation control equipment, industrial, instruments, etc.