Feature Extension Retrofits

This page documents helpful (hardware) retrofits that add new functionalities to existing UltraZohm systems. All retrofits that aim at fixing bugs are documented in Known issues and remedies.

As of mid-2025, the following retrofits are available:

• Adapter card identification retrofit (≤ Rev04)
• I²C/SSD/S²C Extension Board retrofit (≤ Rev04)

The old IsoJTAG_Adapter is an option for Rev04-and-earlier carriers that is not needed for >Rev04 systems or those retrofitted with the I²C/SSD/S²C extension.