Blackmagic Design URSA Mini Pro 12K (PL) - Manual (Page 26)

Important Notes About USB-C flash disk Speed
Some models of USB-C flash disk can’t save video data at the speed the manufacturer
claims. This is due to the disk using hidden data compression to attain higher write
speeds. This data compression can only save data at the manufacturer’s claimed speed
when storing data such as blank data or simple files. Video data includes video noise
and pixels which are more random so compression will not help, therefore revealing the
true speed of the disk.
Some USB-C flash disks can have as much as 50% less write speed than the
manufacturer’s claimed speed. So even though the disk specifications claim a USB-C
flash disk has speeds fast enough to handle video, in reality the disk isn’t fast enough
for real time video capture.
Use Blackmagic Disk Speed Test to accurately measure whether your USB-C flash disk
will be able to handle high data rate video capture and playback. Blackmagic Disk
Speed Test uses data to simulate the storage of video so you get results similar to what
you’ll see when capturing video to a disk. During Blackmagic testing, we have found
newer, larger models of USB-C flash disk and larger capacity USB-C flash disks are
generally faster.
Blackmagic Disk Speed Test is available from the Mac app store. Windows and Mac
versions are also included in Blackmagic Desktop Video, which you can download from
the ‘capture and playback’ section of the Blackmagic Design support center at
www.blackmagicdesign.com/support .
SSDs
With the optional URSA Mini SSD Recorder, you can record video directly to solid state drives,
or ‘SSDs’. These fast, high capacity drives can are readily available from a variety of consumer
electronics outlets.
NOTE See the section ‘Blackmagic URSA Mini SSD Recorder’ in this manual for
information on installing Blackmagic URSA Mini SSD Recorder.
Inserting an SSD
To insert an SSD:
1 Hold your SSD with the connection pins facing towards the front of your camera.
2 Open the spring loaded cover on URSA Mini SSD Recorder and gently insert the
SSD into the slot.
TIP URSA Mini SSD Recorder has a pressure plate to keep different sized
SSDs in place, so there’s no need to use spacers to fit your drive.
3 Once your SSD is all the way into the slot gently push it home until you feel it register,
then lower URSA Mini SSD Recorder’s cover.
26 Storage Media