You're looking for a license key for Rhinoceros 5, a popular 3D modeling software.
You found a cheap key to use as a stepping stone for a discounted upgrade to Rhino 8. No, if: rhinoceros 5 license key
Q: Can I use a Rhino 5 license key on two computers? A: Yes. A single-user license allows installation on one primary computer and one secondary (like a laptop), as long as both are not used simultaneously. You're looking for a license key for Rhinoceros
Q: Will McNeel disable my Rhino 5 if I find a key online? A: They cannot remotely disable a cracked key, but they can blacklist known leaked serials. When you install a blacklisted key, Rhino 5 will enter "zombie mode"—it will launch but crash when saving or exporting. A: Yes