The OEM Sharp 12 Digit Commercial Printing Calculator SHREL2630PIII features a blue fluorescent display and prints at a speed of 4.8 lines per second with two-color printing (Black and Red). It includes essential functions such as markup key, cost/sell/margin calculations, and automatic add-on/discounts. Additional features include oversized add, subtract, multiply, 4-key memory, built-in conversion, and average functions. This calculator also offers add/constant mode, item count, round up/down selector, floating/fixed decimal options, and a grand total function. It operates on AC power and includes a clock and calendar calculation.