The essence of a router is nothing more than a type of computer with limited applications and performance. Even used 10-gigabit routers for both WAN & LAN cost over 30,000 yen, and even those with poor performance. New high-spec products cost over 60,000 yen. ♦️This is easier to use than buying them separately because you can add VPN, NAS, and web server functions. Since my home fiber optic service is OCN's docomo 10-gigabit fiber, I cannot test other connection methods, and *it only supports OCN Virtual Connect connections*. It can support other 10-gigabit fiber connections depending on the settings. ♦️Users who can use this♦️: Those who do not rent or purchase a "Wi-Fi router" from their provider. In other words, those who are only using the ONU shown in the last photo. Those who have already purchased a Wi-Fi router that costs tens of thousands of yen do not need this. Some configuration is required based on the IP address assigned by the provider, so you can either do it yourself, or tell me the IP address and I will configure it before handing it over. You can use it as a regular computer by installing Windows. It has an 8th generation CPU, so you can install Win11. ♦️Specifications♦️ ☑️OS: OpenWrt latest version ☑️Motherboard: Asus B360M ☑️CPU: Intel i5-8100 ☑️Memory: DDR4-4GB @ 3 slots available ☑️Storage: Apple HDD 256 GB ☑️Power Supply: 800W Gold ☑️LAN Adapter: Dell X540-T2 10Gbps ☑️Wireless LAN Adapter 　　　　　　　Intel AX210・6E compatible 　　　　　　　Communication speed 5374Mb・High-performance antenna ☑️+4000 yen for a "Dell X540-T2 10Gbps" unit (to be added) 　　　　　(Installed on a PC that does not support 10Gbps) ♦️Overview♦️ Since there is almost no heat generation, only the CPU fan is running, and the case fan power is OFF. WAN: 1 port 10Gbps...Connect to ONU LAN: 1 port 10Gbps...Connect to PC 1 port 1Gbps...Connect to Wi-Fi AP, etc. ⚠️This is a used product, so we cannot provide after-sales support. How about it for those who want to try OpenWrt and want to research it?