Meritline offers this 6-in-1 Multifunctional USB Adapter 2-Pack in Black for $2.69 with free shipping. (Find it under "Buy More Save More".) That's the lowest total price we could find for this quantity by $5 and the lowest per-unit price we've seen. It includes ports for USB (A and B), Mini USB (A and B), Mini USB 5-pin, and FireWire 4-pin connections.

Expect this item to take two to three weeks to arrive.