Issue: Replace a Solaris SPARC workstation that has become obsolete by a Linux-based VME system whose main function is to secure smartphone paymentsECRIN Systems's solution: Development of a 7U rack combining VME / x86 COTS boards with customized conduction-cooled encryption boards.FeaturesDesign by our design department of a hybrid backplane combining the standard VME bus, connected to a custom specific application bus, with direct connections (sub-D, BNC …) on rear panelDesign by our design department of a conduction cooling cage integrated in a 7U standard mechanics with ventilated coolingCE, EMI/RFI environmental qualificationsCharacteristicsECRIN Systems has chosen to develop a PCB monolithic backplane that combines all VME bus, custom bus and standard connections interfacing functions, reducing the risk of failure due to internal cabling