This is a clever design, It has 4 compartments so you have one extra for cables etc.
Actually I get a boom mic stand in the 4th compartment, although I had to cut down the stand to fit in the length, plus I can squeeze in all the cables I need, a mic and a tiny three channel mic mixer and two-channel DI box. Our duo uses one mic, plus guitar DI and clarinet DI. So we can pack everything we need, apart from instruments, in the speaker bag.
Great accessory for a brilliant PA