Question about Synology Power supply unit for DS4xx

Note on the product: According to the manufacturer's number and also consultation with the manufacturer, this power supply is compatible with more disk stations than stated here, including the DS918+. To check -> just go to Synology Spare Parts and enter your DS type and see what you enter for the power supply. If the name at Synology matches the manufacturer number here, it fits. Adapter 100W_1' is End Of Life, so there is only 'Adapter 100W_2' anyway.