SB-100 PRO 25 Universal Employee Time Clock (Industry First: Manage Timecards via USB, Network or Web). No Monthly Fee. Designed for the small business with 25 employee limit, expandable to 250 employee limit. Easily Expandable. Optional software upgrade packs are available at an inexpensive one-time fee. Track and accrue benefit time, categorize employees time in department, add managers to the clock, etc. Multiple Employee Entry Options. Employees easily clock IN and OUT using 3 digit pre-assigned ID number, through optional proximity badges (sold separately) or through their web browser (upgrade required). No software installation required. Connect to your clock from PC, Network or remotely over the *Internet (Network connection and configuration required). Paychex Online Payroll, ADP, CSV and one-of-a-kind QuickBooks Plug-in included. Also includes free API. (Windows PC required)