You need have little concern that you won't find CHAdeMO at DC fast charging stations. Most of them have, as does the one in your picture, one CHAdeMO and one CCS/Combo plug. This is changing, though. Newer installations tend to have more terminals of which more tend to be CCS/Combo but there is usually still at least one CHAdeMO at each station. It's generally supposed that CHAdeMO will vanish into the sunset. Though they are obviously easy to tell apart they are usually labeled on the charger cabinet, often with illustrations, and are further easily distinguished by shape and pinout. The combo is so called because it has two sets of power pins: the large DC ones in the oval and the smaller AC ones in the circle which also contains the earthing pin and the communications pin pair. The CHAdeMO, by contrast, is DC only (the two large "pins" at 3 and 9 o'clock and the two groups of communications pins, five at 12 o'clock and five at 6. Only 4 of these, two in each group, are used in the Tesla adapter.
