We reported about a variant of Lumia 730, RM-1040 passing certification in Indonesia. Now this variant has passed certification at FCC and the certification confirms that it will have dual-sim support, something which was reported by our sources too. Read full Lumia 730 specs at our dedicated page. It also seems that the dual-sim version will be without LTE support.
The certification also reveals that RM-1040 will not have nano-Sim slot like the LTE variant RM-1038, but rather will have micro Sim slots only. The certification does confirm NFC support for RM-1040 too.