Darfon NSK-XNESV, SB550A-73H0
Keyboard including touchpad (TP) / with DVD tray.
This keyboard is for models with optical drive (DVD) and with touchpad (TP).
Within the same model series, there are keyboards with and without an optical drive (DVD) and with a conventional touchpad (TP) or with a precision touchpad (PTP). If you make the wrong choice, the keyboard will fit, but the touchpad will not be compatible with the model.
A small white label on the underside of the keyboard, directly on the touchboard, indicates whether it is equipped with a PTP when the keyboard is removed.
If it is not possible to remove the keyboard and the manufacturer number of the keyboard is not known,
we can also find out the required keyboard for your notebook using the model designation for some models. Please state this model number when ordering.
You've found this article over a part number. We'll check if it's the correct sparepart for your machine. To do this, please insert the manufacturer and the name of the model in the order comment.
Unfortunately, this s not possible for multiple reasons:
You can only install keyboards intended for the use in your model. So, when your current keyboard does not have a numpad you will not be able to install one with a numpad, since they would be too large. The same is true for keyboards with numpad, ones without numpad would then be too small.
However, there is the option to use an external numpad connected via USB.
Most countries have their own keyboard Layout. Usually the device has the layout of the country it has been bought in.
The English layout can be recognized by the first six Characters of the top row of letters. That's also why it is called QWERTY-layout, another common abbreviation for it would be ENG-layout.
There can be multiple reasons for its failure.