【USB to Parallel Adapter Converter】-- This usb parallel adapter for mach3 works with Mach3 software via plugin. Up to 100kHz operation. Replaces the LPT port. Cable Length: Approx. 12cm / 4.72inch 【Fast Communication & Stable Operation】-- 25 pin usb to parallel converter adapter has fast communication with data buffer for robust and stable operation. 【Wide Application & USB Connection】-- The 25 pin usb to parallel converter is compatible with win xp, win7, win8, win10. USB connection to the control PC. Same pinout as a standard LPT port. 【Premium Engineering Plastic Material】-- Made of premium engineering plastic material, this 25 pin usb to parallel converter is sturdy, not easy to aging and abrasion resistant, to ensure maximum strength and durability for long lasting usage 【What You Will Get:】-- What You Will Get: We stand behind all of our them with a 100% product guarantee and promise to give you the best in customer care! If you have any issue about the item, please contact us by e-mail, we will try our best within 24 hours to reply