SHC68-C68-RDIO2

[ica_2024]

Can I buy a wire like SHC68-C68-RDIO2 but only with 0.5m length instead 1 meter?

[ZYOng]

Unfortunately no. The cables only come in 1m or 2m variants. Reference: NI 78xx Models: R Series Cable and Accessory Compatibility

You might be able to purchase the connectors separately and create your own custom cable. However, I don't see a page for R Series similar to Digital Instrument Custom Cables, Replacement Connectors, and Screws. I would recommend reaching out to NI Technical Support for this info.