The Jetson Orin Nano Super has no physical hardware and package differences compared to the Jetson Orin Nano Developer Kit. The performance upgrade comes from software optimization. It supports up to a 25W power mode and MAXN power mode for the Jetson Orin Nano series.
For the Orin NX series, the carrier board must have an HV rail to enable super mode and thermal designs need to support 40W. Thus the Orin Nano Super devkit is not able to get Orin NX series in Super mode to operate at 40W.