OTC Tools OTC 3421-88 Genisys OBD II Smart Cable. Current OBD II SSI cable goes away! No new SSIs in the various Genisys Kits many were planned! Faster diagnosis, more convenient and higher technician productivity. Sophisticated electronic circuitry in the new OBD II Smart Cable replaces current and future line switching System Smart Inserts (SSIs). Improved technician satisfaction. The new OBD II Smart Cable has the combined power of over 50 System Smart Inserts. Eliminates the need for many current and future System Smart Inserts. Provides improved test capability and accuracy, resulting in faster diagnosis for higher technician productivity. The new OBD II Smart Cable is essentially plug and play. Definition: System Smart Inserts (SSIs) are used to mux or route connector data lines as necessary to facilitate OEM enhanced communication and can sometimes contain electronics. SSIs provide access to this OEM enhanced information in place of additional cables. What was once the best low cost solution is now re-invented with the Genisys OBD II Smart Cable.