Yes, via either of the following 2 methods:

■ MASTER REC on the OPUS-QUAD

Record your performance on a USB flash drive or hard disk drive (HDD) connected to the USB port on the OPUS-QUAD. Touch [REC] on the [SHORTCUT] screen to start or stop recording.

See [Recording] in the Instruction Manual.

You can read the Instruction Manual [here].

■recording function of your DJ application

You can use the recording function of the DJ application connected to the OPUS-QUAD.

【rekordbox for Mac/Windows】

Click the [REC] button at the top left of the rekordbox screen to display the recording panel in the middle of the screen.

Click the [REC] button in the panel to start/stop recording.

For details, see [Recording] in [Performance mode] or [Export mode] in the rekordbox Instruction Manual.

See the rekordbox Instruction Manual [rekordbox.com]