Working voltage:DC 5.0-32V Install:Mounting ears or 3.5 cm universal rails working temperature:Support -40-85 Network port specifications:RJ45, /MDIX line automatic conversion, -connection and direct connection self-adaptation Working mode: server, client ( server also coexists) UDP, UDP multicast UDP dynamic mode; baud rate:300bps-460800bps Transformation Agreement: Modbus , , JSON, Realcom protocol, HTTP; Modbus gateway:Supports multi-host mode, storage mode, pre-configured table (ZLMB) mode; supports to RTU/ASCII Communication method:/IP direct communication, virtual serial port mode (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 1 x Ethernet Serial Server 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.