回复：请叫关于485:NIW(EB2)的485可以转换成家属移民的485吗?

if that family based category is not subject to quota or PD current, such as marriage to USC, I suggest you file another I-485 (with same A#) concurrently with I-130 to avoid delay. If other categories, you can afford to wait for the interfile/relink.