The YAMAHA RTX1100 is a high-performance router with four LAN ports, providing a stable network connection. - Brand: YAMAHA - Model: RTX1100 - Number of ports: 4 LAN ports - Interface: Console port available - Memory: 32MB - Version: Rev.8.03.94 It was in operation until a few months ago, but is being sold due to a model change. Thank you for viewing.