The SIGLENT SDS1104X-E and SDS1204X-E oscilloscopes have a data-logging feature that was added in firmware revision 6.1.37R2 and OS Rev 2
As of now, the maximum file storage size for a data logging event is 2 GB and the measurement logger is 14 Mpts. The USB stick must be as big, or bigger than 2 GB to reach this, of course. The logging process will terminate when this limit is reached.
Learn more by clicking on this Datalogging Application Note