Superconductors exhibit superconductivity in temperature of 30K and less.<p>High-temperature superconductors exhibit that effect in temperature 90-130K.<p>Having all that, 200K is really close to room temperature.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;High-temperature_superconductivity" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;High-temperature_superconducti...</a>