4 SNES controller on Nexus 7

[YesManYes]

Hi

I have 2 of these which i use on my PC
Brand New SFC SNES Super Nintendo Controller adapter for PC USB Mayflash 2 Ports | eBay

Is these anyway to connect these to my Nexus 7 and are there any of the retro emulator compatible with 4 players on Android.

Thanks