@Neelis: It was SKU 26783 as you listed. Opening it was a real PITA, leaves the most external case split in half, and after that all the wires are molded into some rubbery stuff, etc. Also there is no wire for the ID pin, so I had to open up the connector (the metallic shield slides out from around the OTG connector, which is then just a piece of plastic and 5 metallic strips) and just solderbridge the ID to ground, but that was really tricky to avoid melting the plastic away and to add as little of solder as possible to still allow the connector to enter an OTG port.
@OTG Power: it has its owen 100mA supply, but that is really quite low.