If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. GE IS420UCSCH1A Speedtronic MARK VIe UCSC Controller Introduction The GE IS420UCSCH1A Speedtronic MARK VIe UCSC Controller Module is a high-performance control processor engineered as the central computing core of GE’s Mark VIe distributed control system. Built for demanding turbine control *Your Name: *Your Email: *Your Name: *Vdcode: Submit