The maximum step-pulse frequency is 2000 KHz. Now MK6-M4 is stronger, more stable and better performance than other version. Dual-Processors, ARM+FPGA, More processing power 2. Support all versions of Mach4. Work under Windows 32-bit operating system (not including Mac OS) 4.Support spindle speed feedback function. USB jack does not need to install the driver, plug and play under all versions of Windows. Full support USB hot-swappable, USB connection status monitoring at any time. Under Mach4 working state, USB cable unplugs and then plugs in, but also the normal connection. Maximum step-pulse frequency is 2000 KHz, can connect servo driver and stepper driver. The indicator light indicates various working status, such as USB connection, Mach4 connection and so on. 10.16 input IO, 8 output IO, Supports extended I / O control. Onboard isolated power supply, not need external power supply. All IO port fully isolated, strong anti-interference, stable performance. Support spindle speed PWM output; support spindle pulse and direction output; support spindle speed output from 0 to 10V analog voltage. Support XHC series of wireless electronic Mach4 MPG, such as WHB04B-4-M4 MPG. With an aluminum shell, effectively shielding interference, stable and reliable performance. Mach4 Recommended Requirements: PREFERRED: 32 or 64-bit Laptop or Desktop Using an External Motion Controller Windows 10, Windows 8, Windows 7 & Windows XP An appropriate external motion controller Mach4 Plugin for the selected Motion Controller 2Ghz CPU 1GB RAM Video Card with 256MB RAM(Large G-code files, especially 3D files will require a video card with 512MB RAM or higher) Use of Parallel Port for machine control only with desktop style computers with 32-bit versions of windows 7 and below. 32-bit Desktop Parallel Port Recommended Requirements 32-bit version of Windows XP, Windows Vista, or Windows 7 Mach4 Parallel Port Legacy Plugin (cost applicable) 2Ghz CPU 1GB RAM Non-integrated Video Card with 256MB RAM(Large G-code files, especially 3D files will require a video card with 512MB RAM or higher) Note: we don't offer Mach4 software. Usually it cost about 35USD-50USD. The item "CNC 6 Axis Motion Control Card Breakout Board USB 2MHz Mach4 for Machine Centre" is in sale since Monday, March 11, 2019. This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\Drives & Starters\Drives & Motor Controls\Stepper Controls & Drives". The seller is "xasda" and is located in SZ. This item can be shipped worldwide.