Dual PC stream audio setup with single XLR microphone

Watch this video on YouTube.

I decided to go over my audio setup since people have been asking about it. Parts used:
Mixer:
http://www.amazon.com/Behringer-Q802USB-8-Channel-Mixer/dp/B008O517IC/ref=sr_1_1?ie=UTF8&qid=1437952151&sr=8-1&keywords=behringer+xenyx+q802+usb

XLR to USB Audio device:
http://www.amazon.com/Focusrite-Scarlett-Solo-Compact-Interface/dp/B00MTXU2DG/ref=sr_1_1?ie=UTF8&qid=1437952213&sr=8-1&keywords=focusrite+scarlet+solo

2x Hum Eliminator:
http://www.amazon.com/Behringer-HD400-BEHRINGER-MICROHD/dp/B000KUD2G4/ref=sr_1_1?ie=UTF8&qid=1437952180&sr=8-1&keywords=behringer+micro+hd

8x Single channel RCA Adapters:
http://www.amazon.com/gp/product/B000068O3S?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s01

4x Single channel 3.5mm adapters:
http://www.amazon.com/6-35mm-3-5mm-Female-Audio-Adapter/dp/B00E7NYD3G/ref=sr_1_8?s=musical-instruments&ie=UTF8&qid=1437952375&sr=1-8&keywords=3.5mm+to+1%2F4+mono

2x RCA-3.5mm Cables:
http://www.amazon.com/Choseal-3-5mm-Audio-Adapter-Cable/dp/B00A7J1ANA/ref=sr_1_4?s=musical-instruments&ie=UTF8&qid=1437952459&sr=1-4&keywords=rca+to+3.5mm

2x 3.5mm Cables:
http://www.amazon.com/iXCC-Tangle-Free-Tangle-Resistant-3-5mm-enabled-Smartphone/dp/B00KWR8ME2/ref=sr_1_1?s=musical-instruments&ie=UTF8&qid=1437952505&sr=1-1&keywords=3.5mm+cable

1x RCA Cables:
http://www.amazon.com/iMBAPrice%C2%AE-PREMIUM-6-Feet-Stereo-Plated/dp/B001VIYYCK/ref=sr_1_1?s=musical-instruments&ie=UTF8&qid=1437952428&sr=1-1&keywords=RCA+Cables

Text version:
Mic-
1. XLR Mic to Focusrite Scarlett Solo
2. USB from Scarlett Solo to Stream PC
3. RCA-3.5mm cable from Scarlett Solo to Hum Eliminator via 3.5mm-1/4 mono adapter RCA
4. 3.5mm cable w/ 3.5mm-1/4 mono adapter from hum eliminator to gaming pc mic in

Stream pc audio-
5. 3.5mm cable from stream pc to hum eliminator w/3.5-1/4 mono adapter
6. RCA-3.5 cable w/3.5-1/4 mono adapter from hum eliminator to mixer w/ 2x Single channel RCA Adapters

Game pc audio-
7. RCA-3.5 cable from gaming pc to hum eliminator #2 w/ 2x Single channel RCA Adapters
8. RCA cable w/4x Single channel RCA Adapters from hum eliminator #2 to mixer