The PCBuilder CAST ULTRA sits above the CAST CORE as PCBuilder's flagship USB gaming/streaming microphone, adding four selectable polar patterns — stereo, omnidirectional, cardioid and bidirectional — so it can be switched between focused single-voice recording, room-filling ambience capture, or a face-to-face two-person interview setup without needing a different microphone for each situation. It uses a triple-diaphragm design (three 14mm capacitive capsules working together) for studio-level sound quality across a wider 40Hz-20kHz frequency range, with a sensitivity of -42dB±2dB at 1kHz and support for up to 192kHz sampling — a genuine step up in resolution over the single-capsule CAST CORE. A one-key control on the mic body handles volume and gain adjustment directly without digging into software, and a built-in high-quality sound card provides a 3.5mm headphone jack for real-time monitoring with zero latency. Dynamic ambient lighting effects add a visual element for streaming setups, and it includes a USB Type-C cable and threaded stand adapter in the box for mounting to a boom arm or tripod.