BenQ have added the SW321C to their 3D LUT capable displays that can be accurately calibrated via LightSpace.
The thee BenQ displays that are LightSpace compatible are now the PV270, SW270C, and SW321C models.

https://www.lightillusion.com/benq_manual.html

Steve

Hello there. I'm currently on a 3-day rental of Lightspace CMS and have made it through the 3D Lut guide thanks to your instructions! I have a Benq 271-B which allows for 3D Lut installing. After I follow this guide the program crashes when I try the last step of uploading the new Lut. I'm able to upload a null cube but not a lut created by the LightSpace software. Any ideas?

As per the user guide: https://www.lightillusion.com/benq_manual.html

The BenQ PV270, SW270C, and SW321C are presently the only displays in the BenQ range with 3D LUT capability, and can therefore be calibrated via LightSpace CMS.

No other BenQ display presently has 3D LUT capability.

Steve

Actually the SW271 also accepts up to 3 3D Luts which is why I bought it:

https://www.benq.com/en-us/monitor/photographer/sw271.html

Unfortunately, that is not correct.
ONLY the 3 display models listed have 3D LUTs, and can be integrated with LightSpace.
That information is provided by BenQ themselves.

Steve

Steve
What about sw240 they clearly mentioned it has 14bit 3d lut hardware capability on their website.

As stated above, and as per the user guide: https://www.lightillusion.com/benq_manual.html, the BenQ PV270, SW270C, and SW321C are presently the only displays in the BenQ range with 3D LUT capability, and can therefore be calibrated via LightSpace CMS.
No other BenQ display presently has 3D LUT capability.
This is information provided by BenQ.

Steve