9mm DB16 connector: no soldering required. The improved DB9 connector is thinner than the others. Thin but hard. Easy to install and disassemble. It has fine solder joints, which can withstand more than 2,000 plug-in and plug-out tests. Shell with non-slip design. Easy Installation: All signal ports are clearly named and labeled on both sides of the board for quick wiring. Terminal wire range: 16-26 AWG. Material: The DB9 connector uses an eco-friendly white rubber core that is RoHS compliant. The outer casing is made of eco-friendly PP engineered material, which is durable. Wide Compatibility: The DB9 solderless connector is compatible with digital cameras, set-top boxes, barcodes, PLCs, PDAs, modems, tax control machines and more. Package contents: 2 DB9 connectors with 4 adapter sizes (0.5 m, 0.6 cm, 0.7 cm, 0.8 cm). Features: Shell Type: Fixing Screw. Thickness: 16 mm. Name: DB9 Solderless Module. Connector Material: Pure Copper. Dimensions: 49 x 34 x 16 mm Cable hole diameter: 0.6 cm, 0.7 cm, 0.8 cm. Housing Material: Eco-friendly Polypropylene. Gold-plated copper core, durable, plug-in, good contact, copper-plated copper terminal, good transmission, 10A current allowed