The T-90SK tank is designed to provide command and control over subordinate units, facilitate communications with superior commanders, and conduct operations as part of units and subunits.

This command tank is a derivative of the T-90S tank and is distinguished by an R-168-100KBE HF radio set, TNA-4-3 tank navigation equipment set and PAB-2M aiming circle.

Its basic specifications are on par with the baseline T-90S model. The command tank’s armament system, protection systems, power plant, transmission, running gear, vision devices, deep-water fording kit, self-entrenching equipment, and mine-clearing equipment mountings are similar to those of the T-90S MBT.