{"id":17747,"date":"2026-07-10T18:38:50","date_gmt":"2026-07-10T18:38:50","guid":{"rendered":"https:\/\/www.retrobuddys.com\/?post_type=product&#038;p=17747"},"modified":"2026-07-10T19:10:33","modified_gmt":"2026-07-10T19:10:33","slug":"greaseweazle-v4-1-usb-floppy-adapter-flux-reader-writer-for-amiga-atari-and-others-kopie","status":"publish","type":"product","link":"https:\/\/www.retrobuddys.com\/en\/shop\/gotek-en\/greaseweazle-v4-1-usb-floppy-adapter-flux-reader-writer-for-amiga-atari-and-others-kopie\/","title":{"rendered":"Greaseweazle V4.1 USB Floppy Adapter with 3.5&#8243; Floppy Drive &#8211; Flux Reader\/Writer for Amiga, Atari, and Others"},"content":{"rendered":"<p>Greaseweazle 4.1 is the latest generation of the well-known USB floppy disk adapters with flux compensation. It allows you to read from and write to floppy disks at the raw data level (Keir calls this the &#8220;flux level&#8221;). By extracting the raw data from a drive, any disk format can be captured and analyzed\u2014PC, Amiga, Atari, CPC, Amstrad, PDP-11, synthesizers, musical instruments, industrial devices, and many more.  <\/p>\n<p>Greaseweazle also supports writing to floppy disks from a variety of image formats (ADF, IPF, DSK, IMG, HFE, &#8230;).<\/p>\n<p><strong>Greaseweazle V4.1<\/strong> is the latest version and updates the V4 design with new features:<\/p>\n<ul>\n<li>Larger form factor with stronger mounting holes<\/li>\n<li>Modern USB-C port<\/li>\n<li>Input Protection (ESD, Overcurrent)<\/li>\n<li>USB power isolation, which allows the Greaseweazle to be powered via an external power supply along with the drive(s)<\/li>\n<\/ul>\n<p><strong>Functions:<\/strong><\/p>\n<ul>\n<li>Reads and describes 3-inch, 3.5-inch, 5.25-inch, and 8-inch floppy disks (with a compatible drive and cable).<\/li>\n<li>Buffered outputs for communication with older 5.25-inch and 8-inch hard drives.<\/li>\n<li>Built-in power connector for direct power supply to most 3.5-inch hard drives.<\/li>\n<li>The write-protect jumper can be removed to keep valuable vintage discs safer.<\/li>\n<li>Supports &#8220;flippy&#8221;-modified 5.25-inch drives.<\/li>\n<li>Supports hard drive swap detection, as used by Rob Smith&#8217;s integration into the WinUAE Amiga emulator.<\/li>\n<li>3 user-configurable outputs (e.g., 8-inch interface REDWC signal).<\/li>\n<li>It can be easily integrated into WinUAE using Rob Smith&#8217;s FloppyBridge =&gt; https:\/\/amiga.robsmithdev.co.uk\/winuae#<\/li>\n<li>100% factory-tested.<\/li>\n<li>You can find more information and documentation here: github.com\/keirf\/Greaseweazle\/wiki\/V4-Setup<\/li>\n<\/ul>\n<p><strong>Scope of delivery:<\/strong><\/p>\n<ul>\n<li>depending on the options selected<\/li>\n<\/ul>\n<p><strong>Downloads:<\/strong><\/p>\n<ul>\n<li>Greaseweazle Software =&gt; <a href=\"https:\/\/github.com\/keirf\/greaseweazle\/releases\/tag\/v1.23\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/keirf\/greaseweazle\/releases\/tag\/v1.23<\/a><\/li>\n<li>Greaseweazle Firmware =&gt; <a href=\"https:\/\/github.com\/keirf\/greaseweazle-firmware\/releases\/tag\/v1.6\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/keirf\/greaseweazle-firmware\/releases\/tag\/v1.6<\/a><\/li>\n<li>FluxMyFluffyFloppy =&gt; <a href=\"https:\/\/github.com\/FrankieTheFluff\/FluxMyFluffyFloppy\/releases\/tag\/5.27\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/FrankieTheFluff\/FluxMyFluffyFloppy\/releases\/tag\/5.27<\/a><\/li>\n<li>GCopy =&gt; <a href=\"https:\/\/escomputing.de\/escomputing\/gcopy.html\" target=\"_blank\" rel=\"noopener\">https:\/\/escomputing.de\/escomputing\/gcopy.html<\/a><\/li>\n<li>FloppyBridge =&gt; <a href=\"https:\/\/amiga.robsmithdev.co.uk\/winuae#\" target=\"_blank\" rel=\"noopener\">https:\/\/amiga.robsmithdev.co.uk\/winuae#<\/a><\/li>\n<li>Collection of all tools in a single download =&gt;<\/li>\n<li>Yann Serra&#8217;s Tutorial =&gt; <a href=\"https:\/\/github.com\/keirf\/greaseweazle\/wiki\/Yann-Serra-Tutorial\" target=\"_blank\" rel=\"noopener\">https:\/\/github.com\/keirf\/greaseweazle\/wiki\/Yann-Serra-Tutorial<\/a><\/li>\n<\/ul>\n<p><strong>Supported host operating systems:  <\/strong><\/p>\n<ul>\n<li>Windows 10\/11<\/li>\n<li>Ubuntu Linux<\/li>\n<li>macOS (current versions)<\/li>\n<li>Most current versions of Linux distributions should also work (though they haven&#8217;t been tested extensively).<\/li>\n<\/ul>\n<p><strong>Case by Tom Dalby for DIY printing:<\/strong><\/p>\n<ul>\n<li>Enclosures for GW and 3.5&#8243; floppy drives => <a href=\"https:\/\/www.printables.com\/model\/83539-greaseweazle-v41-v4-f1-plus-mini-case-with-space-f\" target=\"_blank\" rel=\"noopener\">https:\/\/www.printables.com\/model\/83539-greaseweazle-v41-v4-f1-plus-mini-case-with-space-f<\/a><\/li>\n<li>Slim Case for GW => <a href=\"https:\/\/www.printables.com\/model\/653462-greaseweazle-v41-slimline-case\" target=\"_blank\" rel=\"noopener\">https:\/\/www.printables.com\/model\/653462-greaseweazle-v41-slimline-case<\/a><\/li>\n<\/ul>\n<p><strong>Many thanks to:<\/strong><\/p>\n<ul>\n<li>Keir Fraser for developing Greaseweazle<\/li>\n<li>Tom Dalby for the development of the housings<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Greaseweazle 4.1 is the latest generation of the well-known USB floppy disk adapters with flux compensation. It allows you to read from and write to floppy disks at the raw data level (Keir calls this the &#8220;flux level&#8221;). By extracting the raw data from a drive, any disk format can be captured and analyzed\u2014PC, Amiga, Atari, CPC, Amstrad, PDP-11, synthesizers, musical instruments, industrial devices, and many more.  <\/p>\n<p>Greaseweazle also supports writing to floppy disks from a variety of image formats (ADF, IPF, DSK, IMG, HFE, &#8230;).<\/p>\n","protected":false},"featured_media":17622,"template":"","meta":[],"product_brand":[],"product_cat":[227,735],"product_tag":[1307,1306,344,1305,1303,1304],"class_list":["post-17747","product","type-product","status-publish","has-post-thumbnail","product_cat-gotek-en","product_cat-ide-floppy-and-hard-disk","product_tag-3-5","product_tag-5-25","product_tag-floppy-en","product_tag-flux","product_tag-greaseweazle","product_tag-gw","product_shipping_class-dhl-en","first","instock","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/product\/17747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/media\/17622"}],"wp:attachment":[{"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/media?parent=17747"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/product_brand?post=17747"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/product_cat?post=17747"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.retrobuddys.com\/en\/wp-json\/wp\/v2\/product_tag?post=17747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}