In digital RFoF the RF signal is first sampled, quantised and serialised before transmission as a digital data stream. Digital RFoF links are attractive because they integrate naturally with digital beamforming, centralised RAN (C- RAN) and cloud-native processing environments. In practice, digital RFoF architecture requires complex support hardware, including field-programmable gate arrays (FPGAs), serialiser/deserialiser (SERDES) circuits, and protocol stacks. When analogue RFoF makes senseA key advantage of analogue RFoF is its superior spurious free dynamic range (SFDR) compared to digital transport systems, particularly wideband signals. In parallel, the expansion of digital architectures in 5G/6G and cloud-native datacentre environments will continue to create strong demand for direct digital transport.