From 11:00 PM CDT Friday, Nov 8 - 2:30 PM CDT Saturday, Nov 9, ni.com will undergo system upgrades that may result in temporary service interruption.

We appreciate your patience as we improve our online experience.

Serial Interface Device

USB-232/2

Item no longer available

2-Port, USB, RS232 Serial Interface Device—The USB‑232/2 interface transforms your USB port into a single asynchronous serial port for communication with RS232 devices. You can use a USB‑232/2 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.