- 2-port ExpressCard/34 serial interfaces
- Available in RS232, RS485, and RS422 versions
- Hyperthreading- and multiprocessor-compatible
- 230.4 kb/s maximum transfer rate (RS232)
- 128 B transmit and receive FIFOs
- 460.8 kb/s maximum transfer rate (RS485/RS422)
National Instruments ExpressCard/34 serial interfaces provide additional RS232, RS422, and RS485 serial ports on laptop computers. The NI ExpressCard/34 serial interfaces are available in 2-port versions for both RS232 and RS485/RS422. You can install and use ExpressCard/34 interfaces as standard serial ports for your existing applications or with applications written with NI-VISA.
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