The Realtek High Definition Audio driver for the Vostro 3559 can be downloaded below with the latest version being version 126.96.36.19928, A03 which was released in January 2017. You will need to check your hardware before you download the file as it is a very big file. The hardware in the Vostro 3559 is well known and popular as it is in most computers today. The Realtek audio driver for the Vostro 3559 is listed below and is no different to others.
Vostro 3559 : Realtek High Definition Audio Driver
The driver for the Realtek audio driver can be downloaded below. This same driver and hardware can be found in the following products such as the XPS One 2720 as well as the Vostro 5480 and the Vostro 5450 computer. These computers are also listed on this website. You can search for other drivers for this computer on this website as well. Download the zip file below and open it when finished downloading. You can then click on the file inside and it will normally extract the driver files to the C:\ drive on your computer. You will then need to check the Dell directory on the C:\ drive. Enter this directory and click on the install file. The driver for the Realtek audio will now install on your Vostro 3559 computer. That should be about it. Its a very large file so check your bandwidth abilities and hardware and software version first. Note that this is a Windows 10 64bit version driver. You can search this website for more assistance and other drivers such as the Samsung Driver or the UART driver of your choice.