hp switch

https://blog.xuite.net/tolarku/blog/347047247-HP+A5120+%E4%BA%A4%E6%8F%9B%E5%99%A8+switch+%E5%9F%BA%E6%9C%AC%E8%A8%AD%E5%AE%9A+

http://gmoond13.blogspot.com/2017/06/hpswitch1920-web.html