The Allen-Bradley 2711P-K4M5D8, by Rockwell Automation, is a Panelview Plus 6 with a 3.5-inch monochrome display. Tailored for user interaction through a keypad and RS-232 communication, it operates on 18-30 VDC, features 256 MB RAM, non-replaceable backlighting, and uses FactoryTalk View ME software, compatible with series A and B firmware. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 2711P-K4M5D8 Product Line Panelview 6 Plus Display Size 3.5 in. Display Color Monochrome Input Type Keypad Communication RS-232 Input Power 18-30 VDC Software FactoryTalk View Machine Edition Memory 256 MB RAM Backlight Non-replaceable Communication Cable 2711-NC13 Shipping Weight 5 lbs. Shipping Dimensions 14 x 11 x 8 in Series Series A and Series B Firmware 7.00-8.10