The YAMAHA NVR510 is a high-performance router that provides a stable wired connection. - Model Name: NVR510 - Brand: YAMAHA - Included Accessories: AC adapter, instruction manual/CD, vertical stand - Type: Wired LAN router Thank you for viewing. I used this until mid-January 2025. I also handled Hikari phone (fiber optic phone service) with this router. I was using the RJ45 ports because I am in the West Japan area, and I have not used the SFP ports since I purchased it; the seal from when I bought it is still on them.