You don't need two PC's to stream to be a successful streamer, but it does have 2 big advantages:
phantasy uses the BenQ ZOWIE XL2546 and the AOC AG251FZ gaming monitor.
For gaming, phantasy uses a Intel Core i7-6700k CPU with a GIGABYTE GeForce GTX 1080 GPU. He uses a GIGABYTE GA-Z270X-Gaming 7 motherboard. phantasy uses HyperX Savage Black 32GB memory and a Samsung SM951 256GB SSD for storage.