Can I use a Inspiron 8100 port replicator (docking station) with a Inspiron 8200?
Yes. The Dell Advanced Port Replicator (APR) is the same for both the Inspiron 8100 & Inspiron 8200. But you need to use a PA-9 A/C power adapter when using the APR with the Inspiron 8200 (it may be possible to use a PA-6 A/C adapter if you can live with the restrictions mentioned in the power section above).