Official Arcade Works "Blinking Light Win" 
 
Nintendo NES Frontloader 72 pin Cartridge Connector Replacement
 
Foolproof fix for any cartridge connection issues
 
This is also a region mod, simply cycle through regions with the power button
 
Easy to install, no soldering required.
Full installation instructions included.
 
Please select 4.99 postage for uk, 9.99 for europe