{"product_id":"magnetic-peripherals-94205-051-hard-disk-drive","title":"Magnetic Peripherals 94205-051 Hard Disk Drive","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:ca6b811d-4c92-4b87-b038-7715d1d55a6b-131\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:ca6b811d-4c92-4b87-b038-7715d1d55a6b-131\" data-turn-id-container=\"request-WEB:ca6b811d-4c92-4b87-b038-7715d1d55a6b-131\" data-testid=\"conversation-turn-264\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ff090e06-b673-4bdd-bfb9-149f1d3e144d\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"888\"\u003eThe Magnetic Peripherals 94205-051 Hard \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003eDrive\u003c\/a\u003e is a vintage 5.25-inch half-height MFM hard disk drive designed for data storage in legacy industrial computers, CNC controllers, process control systems, and early workstation platforms. Commonly installed in industrial \u003ca href=\"https:\/\/plgautomation.com\/collections\/plcs-more\"\u003eautomation equipment\u003c\/a\u003e, manufacturing control systems, laboratory instruments, telecommunications equipment, and OEM computer systems utilizing the ST506\/MFM storage interface. Maintenance technicians and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this hard drive for equipment repair, retrofit, restoration, and replacement to preserve compatibility with legacy hardware and maintain the operation of older industrial control systems. The 94205-051 is also identified as the WREN IIHH model and provides an unformatted capacity of approximately 52 MB with a formatted capacity of 43 MB. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"890\" data-end=\"907\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"909\" data-end=\"1369\"\u003eThe Magnetic Peripherals 94205-051 Hard Drive is designed for legacy computer and industrial automation applications requiring an MFM interface. It is commonly used in CNC machines, programmable controllers, process control systems, telecommunications equipment, scientific instrumentation, and other OEM systems that rely on 5.25-inch half-height hard disk drives for reliable long-term data storage and system operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1371\" data-end=\"1400\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1402\" data-end=\"2018\"\u003e• Manufacturer: Magnetic Peripherals Inc. (Control Data Corporation)\u003cbr data-start=\"1470\" data-end=\"1473\"\u003e• Part Number: 94205-051\u003cbr data-start=\"1497\" data-end=\"1500\"\u003e• Product Type: Hard Disk Drive\u003cbr data-start=\"1531\" data-end=\"1534\"\u003e• Model: WREN IIHH\u003cbr data-start=\"1552\" data-end=\"1555\"\u003e• Form Factor: 5.25 in. Half-Height\u003cbr data-start=\"1590\" data-end=\"1593\"\u003e• Formatted Capacity: 43 MB\u003cbr data-start=\"1620\" data-end=\"1623\"\u003e• Unformatted Capacity: 52 MB\u003cbr data-start=\"1652\" data-end=\"1655\"\u003e• Interface: MFM (ST506)\u003cbr data-start=\"1679\" data-end=\"1682\"\u003e• Recording Method: MFM\u003cbr data-start=\"1705\" data-end=\"1708\"\u003e• Rotational Speed: 3,600 RPM\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e• Number of Heads: 5\u003cbr data-start=\"1760\" data-end=\"1763\"\u003e• Cylinders: 989\u003cbr data-start=\"1779\" data-end=\"1782\"\u003e• Sectors per Track: 17\u003cbr data-start=\"1805\" data-end=\"1808\"\u003e• Bytes per Sector: 512\u003cbr data-start=\"1831\" data-end=\"1834\"\u003e• Internal Data Transfer Rate: 0.625 MB\/s\u003cbr data-start=\"1875\" data-end=\"1878\"\u003e• Supply Voltage: +5 VDC \/ +12 VDC\u003cbr data-start=\"1912\" data-end=\"1915\"\u003e• Application: Legacy Industrial Computer and OEM Control Systems \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2020\" data-end=\"2044\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2046\" data-end=\"2175\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• CDC 94205-051 WREN IIHH\u003cbr data-start=\"2071\" data-end=\"2074\"\u003e• Imprimis 94205-051 WREN IIHH\u003cbr data-start=\"2104\" data-end=\"2107\"\u003e• Seagate ST251 MFM Hard Drive\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"PLG Automation ","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51727319105838,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1ade12ec-1da0-44f1-a432-e89d01e7c370.jpg?v=1770582442","url":"https:\/\/plgautomation.com\/products\/magnetic-peripherals-94205-051-hard-disk-drive","provider":"PLG Automation ","version":"1.0","type":"link"}