One end is RJ45 crystal net, and the other end is 9-pin female head, which is used for connecting it machines with various PC devices console configuration , 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 for routers and switches. It can be used not only on for equipment, also on routers and switches of other . Because many machines of other have the same structural principle as , generally speaking, if you to buy 9 holes (232 ports) on one side and RJ45 (network cable port) on the other side, this is universal Different batches, may have color difference The wiring mode is as follows: DB9F------RJ45 2------------3 3------------6 4------------7 5------------4+5 6------------2 7------------8 8------------1 Colour:light blue Material:PVC+Metal Size:Length: about 1.8 Package Contents: 1 x USB Console Cable Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.