CDJ-2000 is the only one that has “hot cue” section and compatible with SD cards.
But you can use rekordbox with CDJ-350, 850, 900, and 2000, which all work using USBs. You can save your playlist and memory cues/loops onto the USB and the CDJ will read it. You don’t need an SD card slot if you’ll use USBs.
the cdj1000s and dvj01 have hot cues but these were saved onto an sd card…the player couldnt play music off the sd card though and both are way before the time of rekordbox