USB Connect – Add USB to Your CNC

The USB Connect series for USB CNC solutions will eliminate old technology on your CNC machines, increase program storage at the machine, & bring new life to them with our USB solutions. Tired of CNCs with a floppy disk drive? Looking to add a USB port to your CNC control to transfer NC programs? Our USB serial port adapter products, available in portable & pendant models, streamline loading & saving of part programs via USB connectivity, as well as drip-feeding to CNCs.

Our Floppy to USB Emulator acts as a portable floppy disk drive for machines, is easy to install, & requires no system configuration/debugging. It works in PCs & a vast list of CNC machines – call SFA at (877) 611-5825 with your floppy drive Make & Model info so we can confirm the ability to emulate!

Our USB Connect, a CNC USB RS232 converter, has flexible DNC firmware built into the unit, allowing connection to just about any machine tool CNC control with a USB directory listing.

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Positioning the USB Connect controller close to the control allows the machine to run at its maximum baud rate. This also adds extra protection from potential damage and saves the operator time previously spent running from the PC to the machine to begin operation, as the device will push files to CNC machines.

Store large part programs libraries on a single USB flash drive to achieve controllers to USB drip-feeding. Enjoy hardware & software flow control, plus Xmodem flow control. Our USB Connect solutions also address Haas USB solutions and Haas RS232 needs!

Front angled view of a universal Floppy Connect Floppy Drive Emulator with a silver SFA USB drive plugged into the USB port.

Floppy Drive Emulator

  • Plugs into floppy power connector
  • Support Wired EDM, Mills, Lathes, Robots, & equipment
  • No need for Floppy Disks anymore
  • Works with PCS & CNC machinery
  • Off the shelf Haas Floppy to USB model available

USB Connect Portable

  • Portable, rugged aluminum enclosure
  • Drip-feed with single button repeat operation
  • Mid-tape start with search function
  • Connects via RS232 serial port with 4 line LCD display
  • Eliminates need for expensive memory upgrades
A Portable USB Connect with an aluminum enclosure and a handle for easy transport.
Close up of a USB Connect Pendant, which has a 4 line LCD display and can be mounted to any CNC machine.

USB Connect Pendant

  • Mount to your CNC machine
  • Supports any CNC machine
  • Includes USB Thumb Drive
  • Easy to install on any CNC
  • Upload/Download/Drip Feed
A USB Pendant Display and its circuit board with text that says "Add a USB Port to Mazak Machines".

USB Connect Pendant with Ethernet


  • Adds USB port to Mazak machines
  • Adds Ethernet port for future network transfers
  • Supports Mazatrol / CMT format
  • Send & Receive any EIA/G Code format
  • Works with any Mazak controller
  • Save part programs offline
  • Supports drip feeding
  • Use any size USB thumb drive

USB to Serial Connect

  • USB to Serial Adapter
  • Supports Windows 7, Windows 8 & 10 – 32/64 bit
  • CNC Control Compatible
  • LEDs for indicating USB activity
  • DB9 male connector for RS232
A silver USB to RS232 adapter for connecting computers to CNC machines.

Secure USB Drive

  • 8 GB 256 Bit AEX XTS Military Grade Hardware Encryption USB Memory Key
  • Software-free and onboard authentication
  • Completely cross-platform compatible and OS-agnostic
  • Rugged aluminum enclosure
  • 3-year warranty


All Data is encrypted on the fly, and the device’s PINs and Data remain encrypted while the drive is at rest. All internal componentry is protected from physical tampering with a layer of hardened epoxy, and locked-down firmware brings immunity to malware attacks such as Bad USB.  If you’re worried about security and part programs, this is the tool to help you meet FIPS 140-2 level 3 validation.

USB Flash Drive

  • 1GB – Store Programs, Photos, Docs & More
  • Works with our Floppy Drive Emulator
  • Works with our USB Connect Devices