Use your DB9 serial device with your computer with this convenient 6' USB-A to RS-232 DB9 Null Modem Adapter Cable 6ftfrom Rocstor.

It includes USB-A male connector on one end and an RS-232 / DB9 serial female connector on the other, allowing you to transfer data between compatible devices. This cable also has a COM retention feature that allows it to keep the same COM port value, even when the cable is disconnected and the computer is rebooted. The integrated FTDI chipset supports additional customization and advanced features in addition to providing expanded compatibility with Windows, Windows CE, macOS, and Linux devices.

USB-A Male Connector    RS-232 / DB9 Serial Female Connector    FTDI USB UART Chip    Works with Windows, macOS & Linux

Related Questions and Answers

Q: 1. this modem work with optimum in nj?

A: You will need to consult with the cable provider directly for a current list of compatible Modems.

Q: 2. Since this modem has only 1 wan port, can I connect it to my 48Gigabit ports managed switch?

A: Sorry, I really can't say. I got this for my cable connection. It's the only thing I use it for.

Q: 3. Compatible with AT&T

A: The Netgear CM1200 DOCSIS 3.1 Multi-Gig Cable Modem is not compatible with AT&T.

Q: 4. Why the coax cable?

A: The COAX cable is required for the Internet service providers to allow the modem to connect to there service systems for an internet connection.

Q: 5. will this modem/ router combo work with century link?

A: This is not compatible with Century Link.

Q: 6. Does this modem work on Telstra or Optus in Australia?

A: The SB6190 SURFboard Cable Modem is a standard DOCSIS 3.0 device. You would need to contact your local ISP to verify if they support this standard.

Q: 7. I need 3 in 1 modem, phone ,router is this it or where can i get one please for comcast

A: This one does not have telephone. A CM1150V could do what you want. https://bhpho.to/3ckpLXX

Q: 8. will this work with Verizon?

A: No, the Netgear CM1200 DOCSIS 3.1 Multi-Gig Cable Modem BH #NECM1200100N is not compatible with Verizon.

Q: 9. Does this support 5G?

A: 5G is a standard for Cellular connection. This is a cable modem for residential internet connection.

Q: 10. what version of firmware does the device come loaded with?

A: I don't remember, but after installing it you can always go online and update it to the latest. The instructions that come with it tell you how to do that. I try to check on updates every so often.