chenyang UTP STP 2 in 1 Out 2 Ports RJ45 LAN CAT Network Switch Selector Internal External Networking Switcher Splitter Box

UTP STP 2 in 1 out 2 Ports RJ45 LAN CAT Network Switch Selector Internal External Networking Switcher Splitter BoxLong service life repeated switching times up to more than 100 thousand timesNo power supply no electronic switch no electrical interference to network signalsWhen the network load and the amount of data communication is high does not have the network congestion anddata substitution problemReal physical isolation there is no electrical wiring connection between the internal and external networksA computer two network switching easy to use no power drive needed