KEYSPAN MINI PORT REPLICATOR ROHS Many modern desktop and laptop PCs no longer offer serial and parallel ports - yet serial and parallel devices are commonly used in many industries. No ports? ... No problem! The Keyspan Mini Port Replicator combines a USB serial adapter, USB parallel printer adapter and 2-port USB hub into one compact accessory. The Keyspan Mini Port Replicator works with all brands of PCs. Other port replicators are designed to be left on your desk and used when you return to your home/office. They must be plugged into an electrical outlet in order to work. Unlike these competitors, the Mini Port Replicator draws power from the USB connection. It is not necessary to carry a power adapter or to be at a power outlet to use the replicator. As a result, it is a truly mobile solution. Use it anywhere!