The ibaNet 32Mbit Flex protocol (referred to as "Flex protocol") is a manufacturer-specific data transfer protocol by iba AG. This protocol serves to transfer measurement and configuration data via FO connections between different iba devices. The PC cards of the ibaFOB-D/ibaFOB-Dexp and ibaFOB-io-ExpressBoard series, the ibaFOB-io-USB adapter as well as some devices for data acquisition support this protocol.