'Red Banner-7'; NATO reporting name: CH-SA-4)[3] is a short-range surface-to-air missile (SAM) from the People's Republic of China.

It was reverse-engineered by the Changfeng Electromechanical Technology Design Institute from the French R-440 Crotale SAM.

[1] A ground battery consists of a short-range radar and three launchers.

[1] Original command-guided version.

[11] Produces a mobile version dubbed Herz-9 FM-90 and FM-90N.