Configured with a serial RS-232 host interface and supplied with an RS-232 cable (PC D-sub, 9-pin), the Datalogic M231B-00171-01040R is an in-counter, horizontal single-plane barcode scanner built for medium to high-volume POS environments. It autodiscriminates all standard 1D codes including GS1 DataBar Linear codes, and extends that coverage to stacked symbologies — GS1 DataBar Stacked, GS1 DataBar Stacked Omnidirectional, and GS1 DataBar Expanded Stacked. The unit includes standard EAS integration, a standard counter mount, and a Euro desktop power brick with cord. Flash memory supports field software upgrades, and an auxiliary RS-232 port accommodates handheld scanner attachment, configuration, or label data output. Weighing 2.43 lb, the scanner carries RoHS environmental compliance and is backed by a 3-year limited warranty.