Elgato Game Capture 4K60 S+ allows for standalone recording without a PC to an SD Card.
The bit rate at which videos are recorded can be configured on the SD Card. Learn more about configuring standalone recordings here.
Not all SD Cards are made equal and offer differing read and write performance.
Since Elgato Game Capture 4K60 S+ only writes video files to the SD Card, the sustained write speed is important.
There are multiple ways to identify SD Cards and what their theoretical performance is.
Recommended is a SD Card featuring the speed rating of:
V30 (Video Class 30)
UHS-3 (Ultra High Speed Class 3)
If the SD Card features these markings, it can record reliability at 30 MB/s (Megabyte) or 240 Mb/s (Megabit).
An SD Card with these markings may look similar to this image:
For more information on different SD Card speed classifications, see the table below.
More information can be found on the official SD card website: