Specifications Dot Matrix Printers Impact Dot Matrix 80 Columns 24 Needles Hi-Speed USB - Compatible With USB 2.0 Specification Parallel 25.000 Hours 400 Million Strokes/Wire Windows 10, Windows 7, Windows 8, Windows Vista, Windows XP Increased Productivity Enjoy maximum productivity with fast print speeds of up to 487 cps (10 cpi) and 128 kb memory buffer. Long-life Reliability Enjoy cost savings, superior print quality and minimal downtime with a MTBF of 25,000 POH. Printing Technology Print Method: Impact dot matrix Control Panel: 6 switches and 10 LEDs Print Direction: Bi-direction Control Code: ESC/P2, IBM PPDS Number of Pins: 24 Print Speed Ultra High Speed Draft: 10 cpi: 550cps High Speed Draft: 10 / 12 cpi: 487 / 584 cps Draft: 10 / 12 cpi: 366 / 439 cps NLQ: 10 / 12 cpi: 121 / 145 cps