If I make exactly the same assumption in regards to the R6400 I replaced on account of security vulnerabilities, troubles with third party firmware, and issues around updates, that is a electricity attract of 11.61w. https://macktechbiz.com/blogs/news/unleashing-the-power-of-micro-appliance-pc-firewalls-a-revolution-in-open-source-firewall-solutions-with-zenarmor-and-opnsense-support