High Definition Serial Digital Interface (HD-SDI) is a higher-bandwidth version of SDI
designed for the extremely high data rates required by uncompressed HD video. Like
SDI, HD-SDI is capable of sending both video and audio through a single connection.
The following decks have HD-SDI interfaces: DVCPRO HD, D-5 HD, and HDCAM decks.
Some devices provide even higher data rates by pairing two HD-SDI channels together
(known as dual-link HD-SDI). Uncompressed HD RGB video and other digital cinema
formats can be transmitted using dual-link HD-SDI.