This Vintage 4 Data Transfer Switch 2 Way PRINTER 25 Pin Port A B Computer Box is a standalone unit that is perfect for anyone who needs a reliable data transfer switch. With two LAN ports and a wired Ethernet (RJ-45) network connectivity, this unit is perfect for those who need to transfer data quickly and efficiently. The unit has a maximum data transfer rate that is unknown, but it is sure to get the job done quickly and effectively. The model is A B and the unit quantity is one. This data transfer switch is perfect for those who need to transfer data from one device to another, and it is sure to meet all of your networking needs.