SFP cage, a microUSB port and a built in Wireless AP.
Perfect SOHO gateway router, switch, 11n AP all in one box
• Ethernet, Fiber, or 4G (with optional USB modem) gateway connection to Internet
• RouterOS gateway/firewall/VPN router with passive cooling
• up to twenty-five gigabit switch ports (1xSFP and 24xRJ45)
• 1000mW high power 2.4GHz 11n wireless AP