Simple 2-3 cameras Live recording in UHD

Hello,
I am looking for a solution for a simple 2-3 cameras live recording. Input is SDI and the signal is UHD. I want to record on SSDs in HEVC or some similar codec. The issue is that during the event - dance competitions - I need to swap the SSDs or SD Cards in a very short time because the numbers are coming pretty close to each other. Optimal would be SSD recording. Which Blackmagic units I need for that task?
Thanks a lot in advance!
I am looking for a solution for a simple 2-3 cameras live recording. Input is SDI and the signal is UHD. I want to record on SSDs in HEVC or some similar codec. The issue is that during the event - dance competitions - I need to swap the SSDs or SD Cards in a very short time because the numbers are coming pretty close to each other. Optimal would be SSD recording. Which Blackmagic units I need for that task?
Thanks a lot in advance!