The Allen-Bradley 2711P-B4C5A, part of Rockwell Automation's Panelview Plus 400 series, is a 3.5-inch color display operator interface featuring both keypad and touchscreen input. It includes an RS-232 communication port, runs on AC power, and is equipped with 64 MB memory and FactoryTalk View ME software. This model, ranging from Series A to E with firmware versions 3.20-5.10, is now discontinued/obsolete. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 2711P-B4C5A Product Line Panelview Plus 400 Display Size 3.5 inch Display Color Color Input Type Keypad/Touchscreen Communication RS-232 Port Input Power AC Software FactoryTalk View ME Memory 64 MB Series A, B, C, D, E Firmware Version 3.20-5.10 Product Lifecycle Status* Discontinued/Obsolete