Elektronika C2 EKVM (electronic key-driven calculator) was manufactured between 1971 and 1975 by an Engineering R&D Facility in Smolensk. At a hefty price tag of RUB 600, it could only be afforded by industrial enterprises. Personnel had to be properly trained to operate these machines.

Elektronika C2 EKVM is an all-transistor calculator featuring a vacuum fluorescent display with 16 digits and three memory registers.

The device can perform basic arithmetic calculations and integer exponentiation. It has special keys to adjust the calculation accuracy.

The calculator runs on a 220V mains supply.