These trademark applications are not to be confused with patent applications. Trademarks will only protect the terms SMART CONNECTOR and APPLE SMART CONNECTOR as used on electronic connectors. In other words, it would prevent another person or entity from using a term similar to "Smart Connector" to describe some sort of electronic connector. It does not protect the way the Smart Connector works. A patent application is required for that.
These two applications bring the total number of federal trademark applications filed by Apple, Inc. to 936 (that's a lot of filing fees), with 716 of these filings still being active (applications not yet registered plus registrations), and 553 live, registered trademarks. That's quite a portfolio.