One of the drawbacks of shooting with the BlackMagic Design URSA, URSA Mini 4K/4.6K cameras are the requirement to use CFast cards as recording media. I guess you can use an external 4K recorder, but that's not going to allow you to record Full RAW. Even cheap 256GB CFast cards capable of handling the URSA will run about $600 dollars/each (seen here).
In the video below, i'm showing you the Atoch C2S Adapter that allows you to record to SSD Drives instead of expensive CFast cards. With this setup, you'll still be able to record in any format the URSA offers, including full uncompressed 4K RAW at 60p.
Yes I know, it's an additional accessory you need to mount to your camera, but can literally save you thousands of dollars in storage costs. It may not be a full replacement for every situation, but when you're just working handheld or on sticks, it's the most inexpensive way to capture high quality footage from the data hungry BlackMagic Design URSA Cameras.
If you're the type to shoot mainly in low quality ProRes, lower framerates, or just 1080 then almost any SSD drive will work. But in order to capture the highest quality from the URSA 4K RAW 60fps, then you'll want to choose a decent SSD Drive. Recommended is the Sandisk Extreme Pro drives or the Samsung Pro SSD drives.
With about 960GB of storage (2 480GB SSD Drives), you're looking at around 2.5 Hours of 4K ProRes HQ at 24p. Every so often I may switch to 4K 60p, or 1080 120fps, but I seem to have enough footage for a decent project. The quality coming off the " target="_blank">BlackMagic Design URSA Mini 4.6K is so nice, I don't even mind shooting in ProRes LT if I need more than 2.5 hours. But even if I had to buy more storage, i'm literally saving thousands of dollars using the Atoch C2S Adapter and recording to SSD over CFast.
Atoch C2S - Cfast to SSD Drive Adapter Ursa / Ursa Mini Cameras