◯ [5 Ports Gigabit Network Switch]: 5*1000M Ethernet port with auto-negotiation function and Auto MDI/MDIX, without separated uplink ports, each port can be uplink ports. (Note: It's not PoE Switch) | ◯ [Plug and Play]: Simple setup with no software to install or configuration needed. Each port supports MDI/MDIX auto-flip and duplex/rate auto-negotiation. And with no configuration necessary making it's perfect for home/small office and small-medium businesses. | ◯ [4KV Lightning Protection]: It designed with lightning protection, it can withstand 4000 volts or more lightning, and prevent circuit failure. Built-in protection circuit. When a short circuit or overload occurs, the port will automatically fuse to protect the safe operation of the switch and other ports. | ◯ [Tiny Size Design]: The size of this 5 ports gigabit switch in inch only 3.92 x 2.01 x 1.06, small and inconspicuous design, saving space, it doesn't affect the beauty of the room due to body size. | ◯ [Metal Case and Fanless Design]: The metal body has excellent resistance to falling, and most accidental falls will not affect the functional use of the switch. The fanless design does not generate noise and also has good heat dissipation performance. The normal operating temperature range is - 10 to 55 ℃, which is safe and worry-free. | ◯ [Multi-scenario and Large-scale Application]: This series of unmanaged switches are fast ethernet switches designed for high-forwarding network environments such as schools, families, SMEs and mini-monitoring.