A few important points:

• 5 × 1 GbE ports
• Port 1 accepts 802.3af/at PoE input, so the switch itself can be powered from a PoE switch.
• Alternatively, it can be powered by 5V USB-C.
• Ports 2–5 do not provide PoE output — you cannot power cameras, APs, phones, etc. from them.
• 5 Gbps non-blocking throughput / 10 Gbps switching capacity
• Supports VLANs and other basic Layer-2 management through UniFi.
• Very low power consumption: 2.5 W maximum.