Nokia Asha 210 - Can I sync my contacts, calendar entries, or mails with my PC with Nokia Connectivity Cable Driver?

No, you can only connect your phone to your PC as a modem with Nokia Connectivity Cable Driver. However, your phone may have other ways to sync your mails, contacts, or calendar entries. On some high-end Nokia Asha/S40 phones you can, for example, use Mail for Exchange or add your Nokia account to your phone.