Marketplace POS systems Marketplace POS systems Other Birch PKB-111 POS keyboard, 111 keys Programmable keyboard with 111 keys, optionally equipped with bar code slot reader or with magnetic cards slot reader. Available variants:Select a variant for more information Alphabetically (article code) Less expensive first Most expensive first Birch PKB-111 POS Keyboard USB, 111 keys, 3tr. MSR, black Birch PKB-111 Programmable POS keyboard, 111 keys, USB, black