Support 1 channel serial male input and 4 serial female port output Full hardware design, support any rate and any protocol Data transmission and reception without any delay Support cascade, the maximum output transmission distance of 25 Can achieve 1 control 4 devices; Can achieve 4 control 1 devices Specifications: Product name: Serial spitter Model: MT-RS104 Input interface: DR9 female -232 Output interface: DR9 male -232 rate: 300-115200bps Communication distance: 30M(based on 26AWG cable) Plug Type:US Plug,it applies to Canada, , Mexico, Thailand, the , the Philippines, Taiwan and so on. colour: black : metal Voltage: AC110V Package Contents: 1 x bidirectional splitter Only the above package content, other products 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.