Newly released firmware updates for the Sony a7R II and a7S II enable XAVC S format video recording to SDHC memory cards. Previously, XAVC S format video could only be recorded to an SDXC card. Sony makes a couple of notes on the use of SDHC cards for XAVC S video – any recorded files larger than 4GB will be split into multiple files to comply with a 4GB maximum file size limitation. Cards must also be at least SD Speed Class 10 and UHS Speed Class U1 or faster. Video recorded at 100Mbps or more must use a UHS Speed Class U3 card.