The Realtek audio hardware in the XPS One 2720 has been used in a number of other computers and pretty much comes standard today in most home computers. The Realtek Audio High Definition hardware all use the same driver software. This same hardware used in the XPS One 2720 computer has also been used in the Vostro 5450 as an audio card as well as the Vostro 5480 audio card setup. This is a very popular piece of audio hardware in computers today.
XPS One 2720 : Realtek Audio Driver
The XPS One 2720 computer comes with the Realtek Audion High Definition Audio card and the software is listed below. You will also not that this is a Windows 10 driver for a 64bit system. The driver was updated in January 2017 and it is the latest driver for this model of computer. Note that this is version 126.96.36.19928, A03 so check your software version first before you download the file. Once you download the file you should open the file and then proceed to click on the file inside which will then install the driver on your computer or it will extract the files to the C:\ drive on your computer. You will then need to check the Dell directory where you will find the files. Click on the install file in this directory and the driver will then install the audio driver for the Realtek audio high definition hardware.
Version : 188.8.131.5228, A03
Supported Operating Systems : Windows 10, 64-bit