I need a pool still
Please take note:
Here are my comments on this case:
1. Antrouter is for solo mining only and you need to be really really lucky to find a block in solo with it.
2. Two Antminer U3's doesn't offer you that much of hash rate. Your miner rewards are really really small in pooled mining.
The antminer U3s will never produce anything large enough at a pool to even cash out. They will always be below dust limits. You can mine at a pool but don't expect that you'll ever get a payout.