What (e.g., Windows 10 64-bit) are you using? What version of Diagbox are you trying to run?
This suggests one of the following is likely:
PSA XS Evolution 9780.Z5 Driver is the core software component required to connect your computer to the professional-grade diagnostic interface used for Peugeot, Citroën, and DS Automobiles. Often paired with the Lexia 3 / Diagbox Psa Xs Evolution 9780.z5 Driver
The reference 9780.Z5 refers to the original OEM diagnostic connector kit used by PSA (Peugeot Société Anonyme). In the aftermarket and clone markets, it represents the high-quality USB multiplexer interface that bridges your vehicle’s OBD2 port to your laptop.
If Diagbox keeps dropping the connection, use the tool to flash a stable firmware version (e.g., V4.3.2 or V4.3.7 depending on your specific Diagbox software update level). What (e
Cable quality is a common failure point. The shorter USB cables often provide more reliable recognition than the longer ones included in many kits. PSA XS Evo driver help | Peugeot Forums
: The original manufacturer, ACTIA , provides driver downloads for their "XS Family" products on the ACTIA Support Page . Often paired with the Lexia 3 / Diagbox The reference 9780
Sometimes the driver installs perfectly, but the tool still refuses to communicate with Diagbox. This happens because the driver installation must match the interface's internal firmware revision.