{"product_id":"apple-preserves-5-25-sync-sensor-unidisk-5-25","title":"Apple Preserves 5.25\" Sync Sensor — UniDisk 5.25\"","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA precision Hall-effect track sync sensor for the Apple Preserves FDC, designed to fit the Apple UniDisk 5.25\" drive. The sync sensor anchors each track's start to within about 1 µs, so flux captures can slip by at most a single bit cell — the foundation the FDC's copy-protection analysis is built on.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis version is laid out specifically for the UniDisk 5.25\", with the audio jack positioned to route the flat 3.5mm cable cleanly inside that drive. With the wide variety of Apple and third-party 5.25\" drives out there, cable routing differs from drive to drive — this is the one to choose for the UniDisk 5.25\".\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eIncludes a precision neodymium magnet that glues to the edge of the drive's large center spindle. The sensor reads the magnet once per revolution, giving the FDC a precise track-start reference.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBuilt-in test mode: a USB-C port and onboard LED let you verify the sensor without any other hardware. Just apply USB power and pass the magnet by the sensor tip — the LED lights on each pass, giving you instant confirmation that the sensor and magnet are aligned before you finish the install.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWorks with the Apple Preserves FDC. The FDC supports two drives and two sync sensors — buy a second sensor to image from two drives, or as a spare.\u003c\/p\u003e","brand":"Apple Preserved","offers":[{"title":"Default Title","offer_id":52785732976960,"sku":null,"price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/5358\/4192\/files\/20260712_153236.jpg?v=1783886438","url":"https:\/\/applepreserved.com\/products\/apple-preserves-5-25-sync-sensor-unidisk-5-25","provider":"Apple Preserved","version":"1.0","type":"link"}