Four ports in total, including two Gigabit Ethernet ports, one USB 2.0 port for data backup, and micro-USB port Centralized Cloud Management supports up to 100 Omada access points, 10 Omada gateways, a maximum of 20 Omada switches, and a maximum of 2 certain DeltaStream GPON OLTs (the number of supported Omada switches decreases by five for each DeltaStream GPON OLT added) Free Cloud Access with the Omada app or Web UI for management and monitoring from anywhere, anytime On-Premises Management lets you monitor and manage devices locally for stability and complete privacy Hardware design with powerful chipset and durable metal casing Flexible deployment powered via 802.3af/at PoE or Micro USB (DC 5 V / Minimum 1 A) Compact desktop or wall mount installation System requirements: Windows 7/8/10/11, Vista, XP or MAC OS, NetWare, UNIX or Linux