One end is RJ45 crystal net, and the other end is 9-pin female head, which is used for connecting it machines with PC devices console configuration line, RJ45 serial port, no turning head.-232 serial port to RJ45 crystal head cable.Interface: -232 9 (female) to RJ45 (male).This is the control line for routers and switches. It can be used not only on for equipment, but also on routers and switches of other . Because many machines of other have the same structural principle as , generally speaking, if you want to buy 9 holes (232 ports) on one side and RJ45 (network cable port) on the other side, this line is universal!Different batches, products may have color differenceThe wiring mode is as follows:DB9F------RJ452------------33------------64------------75------------4+56------------27------------88------------1Colour:light blueMaterial:PVC+MetalSize:Length: about 1.8 metersPackage Contents:1 x USB Console CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.