This coupler allows you to turn two male DB9 serial cables into one long one. That way you can place your device where it's more convenient, not right beside your computer. The coupler is shielded and grounded to help prevent disruptive EMI and RFI interference. Plus, it has gold plating to maximize the signal amd reduce corrosion.
- Connects two male DB9 cables together
- Shielded and grounded to prevent RF and EMI interference