You can Order them directly from my website at:
http://pc-10.com/nesgamelinkAs an added bonus for just a few dollars more you can have your own custom title on the cart instead of the NES GAME LINK title. If you need a new bios chip I can supply that as well, so you can go back to factory bios from the modded freeplay bios.
These have been tested and working with over 100 carts, including the POWERPAK, and other bootleg type multicarts.
You can get the POWERPAK HERE:
http://www.retrousb.com/product_info.php?cPath=24&products_id=34I have personally tested this multicart as well:
http://www.aliexpress.com/item/New-Arrival-150-In-1-Rockman-1-2-3-4-5-6-Game-Card-For-72/32403800897.htmlGames seem to work well, a few the sounds are off, but for the price you can't beat it. the only downside to the cart is you have to fully power off your machine to change to the next game in the list, unlike the POWERPAK where you can simply return to the main title screen.
**** will work with all bios models. factory single monitor, factory dual monitor, and the 1.1 modded bios as well****