Download this tool to modify the product string of MCP2210 :  http://ww1.microchip.com/downloads/en/DeviceDoc/MCP2210Utility_v1.2.1.zip
Read, modify and configure... quite easy. If you use zadig to access MCP2210, you have to remove/uninstall it and change to windows default HID driver such that microchip can access MCP2210 correctly. I will put my source to github here tonight, 'cause that is at home, not in office.
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I thought cgminer was suppose to work with the zadig drivers... excuse my ignorange im not very good at software.
As Taungeran said earlier in the thread, mcp2210 is limited by the hid drivers as they are designed for relatively low output of information, limiting the NFx to about 8 chips... as i found out.