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Greaseweazle V4.1 USB Floppy Adapter Flux Reader Writer + Case

Cat. No: #1598, Category: Retro Computing Accessories
€ 28.99


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, ...).


Comes with 3D printed white case (White PLA with 100% fill density). Case was designed by Tom Dalby.


Greaseweazle V4.1 is the very latest version, updating the V4 design with new features:

- Larger form factor with stronger mounting holes

- Modern USB-C connector

- Input protections (ESD, over-current)

- USB power isolation, allows Greaseweazle to be powered by external PSU along with drive(s)


Other 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 Keir Fraser before shipping

- More information and documentation available here:


This listing is for the Greaseweazle V4.1 device + case 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 10/11, Ubuntu Linux, macOS (recent versions). Most up-to-date versions of Linux distributions should also work (but less tested).


Package included:

- 1x Greaseweazle V4.1

- 1x Perfect fit White 3D Printed 2 parts case. You do not need any glue or screws, the case easily snaps together.

Retro Computing Accessories

We are probably the best Amiga and Retro shop in the world since Our company was established in 2011. We are offering outstanding customer service and we never sell anything that is out of stock. In stock on simply means in stock! Always ready to ship within 1-3 business days from our warehouse based in Dublin, Ireland. Owners of all Amiga models will find something for themselves here including Amiga 500 600 1200 2000 3000 4000 CD32 and CDTV. We have also a huge selection of new accessories for Commodore, C64, C128, Atari, Atari ST computers along with SEGA, NES, SNES, Acorn BBC, VIC-20 and TI-99/4A machines. also offers a full range of kickstars for all Amiga models and we have a huge selection of Amiga Gotek floppy disk emulators. We produce new accessories for retro computers ourselves, but we also distribute existing projects. If you are the author of any project related to Amiga or any other retro hardware and you are looking for help in distribution, do not hesitate to contact us.

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