They’ve been backordered for a long time over at Bluetti, with folks waiting 3-4 weeks for them to arrive. I’m glad I got a different brand earlier because when my Bluetti MC4 to 8mm finally came in, I didn’t like the thin grade of wire they used. I’ve been using the BougeRV ones that came with my solar panels, though I did also buy that SolarEnz one also.
I ordered my EB3 a few weeks ago as a kit with the 120w solar panel.
They shipped the solar panel 1st and then 2 days later shipped the EB3. The box containing the power station was labeled as a 120w solar unit. This meant they packaged the required 8mm to MC4 adapter within the box.
So in other words, when you order the two items as a kit they include the adapter.
I doubt this is helpful to you but subsequent readers may be concerned that they have to source the cable elsewhere when ordering the set.
Now if only they included the car adapter…or had it in stock in Canada…