Network 1u Rack Firewall Server Routers 8*1000m Lan With 4*sfp 10gb Intel I7 8700 3.2ghz I5-8400 2.8ghz Support Ros Router Os - Barebone & Mini Pc - AliExpress
Packet Flow in RouterOS - RouterOS - MikroTik Documentation
Manual:IP/Firewall/Connection tracking - MikroTik Wiki