Please note: Round connector = 5.5 x 2.5mm without inner pin. Many notebook power supplies from this manufacturer are identical in design, making them 100% compatible. Therefore, if you did not receive the exact original number you ordered, it may be a compatible power supply with a different original number that is identical in design. It does not differ in functional and quality characteristics from the model you originally ordered. This item is a high-quality power supply. It is perfectly suitable as a replacement or secondary device and provides power to your ASUS ADP-90YD B just like your conventional power supply, enabling reliable battery charging. Note: Unless we explicitly state that this is an original product, we will deliver a compatible product. This means it is not an original product from the manufacturer and is therefore not manufactured or recommended by them. All brand and product names are the property of their respective owners and are used solely for compatibility description.