Yes, you can connect the NTH-100M to the RØDECaster Pro II using the included splitter cable and a 3.5mm to XLR adaptor that converts phantom power to plug in power, such as the VXLR Pro or VXLR+.
Plug the end of the splitter cable with the microphone symbol into the VXLR Pro, then connect this to any of the RØDECaster Pro II’s XLR inputs and ensure phantom power is turned on for that channel.
Then plug the other end of the cable into one of the RØDECaster Pro II’s headphone outputs using the supplied ¼-inch to 3.5mm adaptor to monitor your audio.