Samsung DeX (stylized asSΛMSUNG DeX) is a feature included on some high-endSamsunghandheld devices that enables users to extend their device into adesktop-like experience by connecting akeyboard,mouse, andmonitor.[1][2] The name "DeX" is a contraction of "Desktop eXperience".
For technical specifications, Samsung DeX requires hardware such asUSB 3.1 transfer specification,USB-C port withDisplayPortAlternate Mode support to be present on a mobile device.[3] Samsung first included the DeX feature on theGalaxy S8, and has continued to support the feature on most of their high-end smartphones, including theGalaxy S,Note andZ Fold lines. The feature is also available on manyGalaxy Tab S models, fromGalaxy Tab S4 onwards.
In 2017, the original version of DeX was released, which required the use of a proprietary docking accessory called the DeX Station. This provided aUSB-C port,Ethernet,HDMI 2.0 output and twoUSB 2.0 ports.[4]
In August 2018 with the launch of theNote 9, Samsung introduced the DeX HDMI adapter (USB-C to female HDMI), DeX cable (USB-C to male HDMI) and DeX multiport adapter, which whilst still proprietary and containing active electronics,[citation needed] eliminated the need for the previous docking accessories.[5] Also in 2018, Samsung released the DeX PAD. This provided a USB-C port, HDMI, and two USB ports. Both design configurations enable the cell phone to lie flat and function as atouchpad or even continue being used as a phone in its usual fashion whilst being connected to a display and with DeX operating.[6]
Since 2019, with theGalaxy Note 10 andGalaxy Fold, DeX can now be launched via a direct cable connection to a physical computer using the existing provided charging cable or any similar off-the-shelf USB-C cable with data transfer, eliminating the need for any proprietary docking accessories.[7]
DeX has also been used in the public safety setting to replace in-vehicle laptops.[8]
Samsung also announced "Linux on Galaxy" (since renamed to "Linux on DeX") which allows the use of a compatibleLinux distribution rather than the defaultAndroid OS giving fullpersonal computer capabilities.[9][10][11]
The DeX Desktop can also be accessed with a downloadable app forWindows andmacOS or through third-party accessories.[citation needed] Users can connect to their mobile devices with a USB cable. As of April 2022,macOS andWindows 7 are no longer supported.
Samsung DeX devices can be managed bySamsung Knox (3.3 and higher) to allow or restrict access using the Knox platform for added control and security.[12][13]
In October 2019 Samsung announced that Linux on DeX will not be available forAndroid 10 and warned users that after upgrading to Android 10 they will not be able to downgrade, permanently losing the ability to use full Linux applications.[14]
In 2020, wireless Dex was introduced, enabling Note 9 and newer phones to useMiracast to project the desktop experience to a PC previously connected via USB or a wireless monitor/TV.[citation needed]
As of 2024, Samsung DeX's PC app is no longer supported on devices runningOne UI 7 and higher.
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