When you graduate, if you don't ask to return your household registration and files to your place of origin, you will have no registration card for the time being. After finding the place to receive files, you can go to the school to ask for a registration card.
The dispatch card is a registration card. Because you are a student now, you need to go to other institutions to handle personnel relations after graduation. It can only be transferred by registered card. The registration card says where your documents will be received.
For fresh graduates who are not employed, they can choose to put their files and personnel relations in their places of origin, or they can be temporarily stored in the school for two years. It's your choice.
In short, the school will fool you to improve the employment rate. Don't be fooled. No big deal. Don’t panic！
Ask again if you don't understand.