The SM7B does NOT require phantom power and is not affected if phantom power is present on its mixer input. Note that some third-party external pre-amps commonly used with the SM7B DO require phantom

Shure SM7B Microphone – Vocal Dynamic Studio Mic for Broadcast, Podcast, Recording, Gaming & Streaming, XLR, Rugged Construction, Detachable Windscreen, Smooth Sound, Warm Vocals, Wide-Range Frequency