If you need a temporary RSMB activation key for evaluation:

Here is a breakdown of why legitimate licensing is the standard for editors and how to properly acquire the software. The Value of ReelSmart Motion Blur

ReelSmart Motion Blur (RSMB) is a tool that automatically tracks every pixel in a video sequence to apply natural-looking motion blur. It is widely used by editors and VFX artists to smooth out choppy footage or add realism to computer-generated (CG) animations. Why "Activation Keys" are requested

Install the RSMB plugin by clicking the link in bio, accepting the agreement, adding license info, and then installing. faxyempire Offline Activation - Mastering The Mix

Even if a crack appears to work, many cracked versions of RSMB introduce random frames with watermarked "RE:Vision Effects" text or corrupted motion vectors halfway through a render. You will not notice until after a 10-hour export.