Modbus Communication TCP Card for Delta VFD-MS300 supports IEEE802.3u and IEE 802.3 transmission method. It has single port and its operating interface is RJ-45with Auto MDI/MDIX. Developed by skilled personnel, Modbus Communication TCP Card for Delta VFD-MS300 deserves praise for its advanced technology and high performance. It has E mail alarm function, basis firewall feature and IP filter. It also supports MDI-X auto detect technology. Long working life, reasonable price, quick fixing method and low maintenance design are its main aspects.