Greaseweazle V4 USB Floppy Adapter Flux Reader Writer, Amiga Atari PC and more For Sale

Greaseweazle V4 USB Floppy Adapter Flux Reader Writer, Amiga Atari PC and more

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Greaseweazle V4 USB Floppy Adapter Flux Reader Writer, Amiga Atari PC and more:

Buy your Greaseweazle from the original designer (That's me!): dir="ltr" style="margin-top: 0px; margin-bottom: 0px;">Zero Flux Development is the business side of my personal projects, through which I now sell all my boards.

Greaseweazle allows versatile floppy drive control over USB. By extracting the raw flux transitions from a drive, any disk format can be captured and analyzed - PC, Amiga, Amstrad, PDP-11, musical instruments, industrial equipment, and more. The Greaseweazle also supports writing to floppy disks, from a range of image file formats including those commonly used for online preservation (ADF, IPF, DSK, IMG, HFE, ...).

Greaseweazle V4 is the latest version, updated for mass production and with the following features:

  • Reads and writes 3", 3.5", 5.25", 8" disks (with suitable drive and cable)
  • Buffered outputs, for communicating with older 5.25" and 8" disk drives
  • Integrated power connector for directly powering most 3.5" disk drives
  • Write-enable jumper can be removed for safer preservation of precious vintage disks
  • Supports flippy-modded 5.25" drives
  • Supports Disk-Change detection as used by Rob Smith's integration into the WinUAE Amiga emulator
  • 3 user-definable outputs (eg. 8" interface REDWC signal)
  • 100% factory tested, and tested again by me before shipping

More information and documentation on my dir="ltr" style="font-family: Arial; font-size: 14pt; margin-top: 0px; margin-bottom: 0px;">This listing is for the Greaseweazle V4 device only. You will additionally require:

  • A disk drive (for example a PC 3.5" or 5.25" drive)
  • A floppy ribbon cable (typically you want a standard PC cable with 'twist' on pins 10-16, to communicate with a PC floppy drive)
  • Floppy drive power cable, or power supply

Recommended host OS: Windows 8, Windows 10, Ubuntu Linux.

Windows 7 and most versions of macOS and Linux should also work (but less tested).

EU buyers: Due to tax changes since 1st July, I am no longer shipping to EU customers. Instead please use an official reseller (,

International buyers: If you want a tracking number, be sure to select the tracked shipping option. If you use the default standard airmail option, there will be no tracking number.

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