Overview Product Description 000839-01-R Sportster 28.8 V.34 W/Fax External 20 VAC (Refurbished) 90 Day Warranty Product Videos Custom Field Product Reviews Write a Review Write a Review × US Robotics 000839-01-R Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *