The're internal [icams] onboard chips.dp322,dp311,dp522 and others have them.They also have card slots ,that can be activated.these chips can be removed and installed on waffer cards such as red devil's.Check dsstester for info/ mods on these and other icam models.
I know a few people who are getting ex sub 301's wide open by a guy who puts a "chip" in it. No card. Just wondering the terminology so I can research it. Thanks sat