High-performance wireless LAN router WSR-3200AX4S-BK 4x4 3200 WSR series, with DIXIM Security. - Brand: BUFFALO - Series: 4x4 3200 WSR series - Number of ports: 4 LAN ports - Functions: Router/AP/WB switchable - Security: DIXIM Security Powered by Kaspersky I have been using this for about two years, but I am selling it because I switched to Ymobile and no longer need it. I have used it without any problems until now. Please understand that this is a used item, and I appreciate your understanding and agreement before making a purchase. Thank you for looking.