{"product_id":"fanuc-a20b-2902-0021","title":"Fanuc A20B-2902-0021","description":"\u003cdiv class=\"text-base my-auto mx-auto [--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 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=\"ea0bd21b-81e1-45ef-8123-ee836c21e1f6\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" 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\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch3 data-start=\"487\" data-end=\"525\"\u003eA20B-2902-0021 Fanuc PC Component Card\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"527\" data-end=\"1285\" class=\"w-fit min-w-(--thread-content-width)\" style=\"width: 100.087%; height: 401.875px;\"\u003e\n\u003ctbody data-start=\"543\" data-end=\"1285\"\u003e\n\u003ctr data-start=\"543\" data-end=\"564\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"543\" data-end=\"555\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"545\" data-end=\"554\"\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"555\" data-end=\"564\" style=\"width: 56.8756%; height: 19.5938px;\"\u003eFanuc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"565\" data-end=\"593\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"565\" data-end=\"577\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"567\" data-end=\"576\"\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"577\" data-end=\"593\" data-col-size=\"xl\" style=\"width: 56.8756%; height: 19.5938px;\"\u003eA20B29020021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"594\" data-end=\"641\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"594\" data-end=\"614\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"596\" data-end=\"613\"\u003eHandling Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"614\" data-end=\"641\" style=\"width: 56.8756%; height: 19.5938px;\"\u003ewithin 1-2 working days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"642\" data-end=\"685\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"642\" data-end=\"664\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"644\" data-end=\"663\"\u003eShipping Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"664\" data-end=\"685\" style=\"width: 56.8756%; height: 19.5938px;\"\u003eDHL \/ UPS \/ FedEx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"686\" data-end=\"927\" style=\"height: 117.562px;\"\u003e\n\u003ctd data-start=\"686\" data-end=\"726\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 117.562px;\"\u003e\u003cstrong data-start=\"688\" data-end=\"725\"\u003eEstimated Delivery Time (via DHL)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"726\" data-end=\"927\" style=\"width: 56.8756%; height: 117.562px;\"\u003eAsia: 1-3 business days\u003cbr\u003eEurope: 2-4 business days\u003cbr\u003eNorth America: 2-4 business days\u003cbr\u003eSouth America: 3-6 business days\u003cbr\u003eMiddle East \u0026amp; Africa: 3-6 business days\u003cbr\u003eOceania: 2-5 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"928\" data-end=\"1017\" style=\"height: 39.1875px;\"\u003e\n\u003ctd data-start=\"928\" data-end=\"943\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 39.1875px;\"\u003e\u003cstrong data-start=\"930\" data-end=\"942\"\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"943\" data-end=\"1017\" style=\"width: 56.8756%; height: 39.1875px;\"\u003eNEW \/ Refurbished: 1-Year warranty\u003cbr\u003eUsed (90% New): 3-Month warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1018\" data-end=\"1081\" style=\"height: 39.1875px;\"\u003e\n\u003ctd data-start=\"1018\" data-end=\"1033\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 39.1875px;\"\u003e\u003cstrong data-start=\"1020\" data-end=\"1032\"\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1033\" data-end=\"1081\" data-col-size=\"xl\" style=\"width: 56.8756%; height: 39.1875px;\"\u003ePCB \/ PC Component Card \/ DRAM Memory Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1082\" data-end=\"1201\" style=\"height: 78.375px;\"\u003e\n\u003ctd data-start=\"1082\" data-end=\"1110\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 78.375px;\"\u003e\u003cstrong data-start=\"1084\" data-end=\"1109\"\u003eParameter Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1110\" data-end=\"1201\" data-col-size=\"xl\" style=\"width: 56.8756%; height: 78.375px;\"\u003eA20B29020021\u003cbr\u003eDISCONTINUED BY MANUFACTURER\u003cbr\u003ePC COMPONENT CARD\u003cbr\u003eDRAM MEMORY MODULE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1202\" data-end=\"1259\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"1202\" data-end=\"1216\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"1204\" data-end=\"1215\"\u003eService\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"xl\" data-start=\"1216\" data-end=\"1259\" style=\"width: 56.8756%; height: 19.5938px;\"\u003eTest video will be sent before delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1260\" data-end=\"1285\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"1260\" data-end=\"1274\" data-col-size=\"sm\" style=\"width: 40.2648%; height: 19.5938px;\"\u003e\u003cstrong data-start=\"1262\" data-end=\"1273\"\u003ePacking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1274\" data-end=\"1285\" data-col-size=\"xl\" style=\"width: 56.8756%; height: 19.5938px;\"\u003eCartons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"1287\" data-end=\"1667\"\u003eThe \u003cstrong data-start=\"1291\" data-end=\"1309\"\u003eA20B-2902-0021\u003c\/strong\u003e is a Fanuc \u003ca href=\"https:\/\/reacocnc.com\/collections\/fanuc-pcbs\" target=\"_blank\" title=\"Buy \u0026amp; Repair Fanuc PCBs for Reliable Industrial Automation\" rel=\"noopener\"\u003e\u003cstrong data-start=\"1321\" data-end=\"1342\"\u003ePC component card\u003c\/strong\u003e\u003c\/a\u003e used in CNC systems where stable memory support and reliable board-level performance are important for normal control operation. Identified as a \u003cstrong data-start=\"1488\" data-end=\"1510\"\u003eDRAM memory module\u003c\/strong\u003e, this board supports the memory-side function of the CNC control system and helps maintain the original hardware configuration of installed Fanuc equipment.\u003c\/p\u003e\n\u003cp data-start=\"1669\" data-end=\"2086\"\u003eBecause this model has been \u003cstrong data-start=\"1697\" data-end=\"1733\"\u003ediscontinued by the manufacturer\u003c\/strong\u003e, it is now mainly requested by customers maintaining older Fanuc-controlled machines, replacing failed memory-related hardware, or preparing spare stock for long-term service support. In real maintenance work, the \u003cstrong data-start=\"1948\" data-end=\"1966\"\u003eA20B 2902 0021\u003c\/strong\u003e remains important because memory modules and component cards often need exact matching to the installed control system.\u003c\/p\u003e\n\u003cp data-start=\"2088\" data-end=\"2283\"\u003eAt \u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/reacocnc.com\/\" title=\"Robot Parts, CNC Parts \u0026amp; Automation Support - REACO CNC\" rel=\"noopener\" target=\"_blank\"\u003eREACO CNC\u003c\/a\u003e, we supply dependable \u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/reacocnc.com\/collections\/fanuc-cnc-robot-parts\" title=\"Shop for Fanuc CNC \u0026amp; Robot Parts\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong data-start=\"1870\" data-end=\"1885\"\u003eFanuc parts\u003c\/strong\u003e\u003c\/a\u003e for customers who need replacement DRAM memory modules, PC component cards, backup stock, or \u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/reacocnc.com\/products\/fanuc-mitsubishi-cnc-robot-parts-repair\" title=\"Reliable Repair for FANUC, Mitsubishi, and All CNC Parts - REACO CNC\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong data-start=\"1961\" data-end=\"1977\"\u003eFanuc repair\u003c\/strong\u003e\u003c\/a\u003e support for installed CNC systems.\u003c\/p\u003e\n\u003cp data-start=\"2285\" data-end=\"2683\"\u003eThe \u003cstrong data-start=\"2289\" data-end=\"2332\"\u003eA20B-2902-0021 Fanuc DRAM memory module\u003c\/strong\u003e is especially relevant in systems where the original memory structure must remain unchanged. Unlike a general control PCB, a PC component card is usually selected by exact part number and configuration. If the wrong card is used, the machine may not recognize the module correctly, or the control system may show unstable behavior after installation.\u003c\/p\u003e\n\u003cp data-start=\"2685\" data-end=\"3104\"\u003eFor many service teams, memory-related faults can be difficult to diagnose because the symptoms may not point clearly to one component. A machine may show startup problems, intermittent control behavior, data handling issues, or unusual system response. In those cases, replacing the correct \u003cstrong data-start=\"2977\" data-end=\"2995\"\u003eA20B-2902-0021\u003c\/strong\u003e is often the most practical way to restore the original memory setup and reduce unnecessary troubleshooting.\u003c\/p\u003e\n\u003cp data-start=\"3106\" data-end=\"3145\"\u003eThis board is commonly associated with:\u003c\/p\u003e\n\u003cul data-start=\"3147\" data-end=\"3345\"\u003e\n\u003cli data-section-id=\"19nlz0v\" data-start=\"3147\" data-end=\"3168\"\u003eFanuc CNC systems\u003c\/li\u003e\n\u003cli data-section-id=\"17jhlv9\" data-start=\"3169\" data-end=\"3205\"\u003eDRAM memory support applications\u003c\/li\u003e\n\u003cli data-section-id=\"ysdyim\" data-start=\"3206\" data-end=\"3239\"\u003ePC component card replacement\u003c\/li\u003e\n\u003cli data-section-id=\"1itcr1i\" data-start=\"3240\" data-end=\"3277\"\u003eLegacy control memory maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"1so7syc\" data-start=\"3278\" data-end=\"3345\"\u003eService work requiring original-compatible \u003cstrong data-start=\"3323\" data-end=\"3345\"\u003eFanuc control PCBs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3347\" data-end=\"3601\"\u003eIt may also be sourced together with related memory modules, main control boards, PMC modules, interface PCBs, \u003cstrong data-start=\"3458\" data-end=\"3478\"\u003eFanuc controller\u003c\/strong\u003e parts, \u003cstrong data-start=\"3486\" data-end=\"3505\"\u003eservo amplifier\u003c\/strong\u003e units, \u003cstrong data-start=\"3513\" data-end=\"3530\"\u003espindle drive\u003c\/strong\u003e units, and other CNC electronic assemblies during broader repair work.\u003c\/p\u003e\n\u003cp data-start=\"3603\" data-end=\"3675\"\u003eDepending on stock availability, this component card may be supplied in:\u003c\/p\u003e\n\u003cul data-start=\"3677\" data-end=\"3739\"\u003e\n\u003cli data-section-id=\"1jqn1mv\" data-start=\"3677\" data-end=\"3694\"\u003eNew condition\u003c\/li\u003e\n\u003cli data-section-id=\"1op2ke4\" data-start=\"3695\" data-end=\"3720\"\u003eRefurbished condition\u003c\/li\u003e\n\u003cli data-section-id=\"1u2nacc\" data-start=\"3721\" data-end=\"3739\"\u003eUsed condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3741\" data-end=\"3927\"\u003eFor discontinued memory hardware, refurbished stock is often a practical choice. It helps customers keep older Fanuc CNC systems running while controlling both repair cost and lead time.\u003c\/p\u003e\n\u003cp data-start=\"3929\" data-end=\"3994\"\u003eCustomers usually look for the \u003cstrong data-start=\"3960\" data-end=\"3978\"\u003eA20B-2902-0021\u003c\/strong\u003e when they need:\u003c\/p\u003e\n\u003cul data-start=\"3996\" data-end=\"4290\"\u003e\n\u003cli data-section-id=\"18mmk8i\" data-start=\"3996\" data-end=\"4052\"\u003eA direct replacement for a faulty DRAM memory module\u003c\/li\u003e\n\u003cli data-section-id=\"9688r2\" data-start=\"4053\" data-end=\"4114\"\u003eSupport for discontinued Fanuc PC component card hardware\u003c\/li\u003e\n\u003cli data-section-id=\"rdh2po\" data-start=\"4115\" data-end=\"4166\"\u003eReliable \u003cstrong data-start=\"4126\" data-end=\"4141\"\u003eFanuc stock\u003c\/strong\u003e for older CNC machines\u003c\/li\u003e\n\u003cli data-section-id=\"1cgxkil\" data-start=\"4167\" data-end=\"4233\"\u003eAccess to dependable \u003cstrong data-start=\"4190\" data-end=\"4205\"\u003eFanuc parts\u003c\/strong\u003e for memory-related repair\u003c\/li\u003e\n\u003cli data-section-id=\"yq2gaz\" data-start=\"4234\" data-end=\"4290\"\u003eHelp deciding between replacement and \u003cstrong data-start=\"4274\" data-end=\"4290\"\u003eFanuc repair\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4292\" data-end=\"4562\"\u003eIn real production environments, the correct memory component can make a major difference in keeping an older control system stable. Having the right \u003cstrong data-start=\"4442\" data-end=\"4460\"\u003eA20B-2902-0021\u003c\/strong\u003e available can make repair work more direct and help return the machine to service with less downtime.\u003c\/p\u003e\n\u003cp data-start=\"4564\" data-end=\"4824\"\u003eREACO CNC supports both direct replacement supply and \u003cstrong data-start=\"4618\" data-end=\"4634\"\u003eFanuc repair\u003c\/strong\u003e inquiries. If your original \u003cstrong data-start=\"4663\" data-end=\"4681\"\u003eA20B-2902-0021\u003c\/strong\u003e is damaged, we can help review whether repair is practical or whether replacement is the better option based on stock, condition, and urgency.\u003c\/p\u003e\n\u003cp data-start=\"4826\" data-end=\"5097\"\u003eWe also support sourcing for related \u003cstrong data-start=\"4863\" data-end=\"4878\"\u003eFanuc parts\u003c\/strong\u003e, including DRAM memory modules, PC component cards, main boards, PMC modules, interface boards, \u003cstrong data-start=\"4975\" data-end=\"4994\"\u003eservo amplifier\u003c\/strong\u003e modules, \u003cstrong data-start=\"5004\" data-end=\"5021\"\u003espindle drive\u003c\/strong\u003e units, and other CNC electronic assemblies used in installed Fanuc systems.\u003c\/p\u003e\n\u003cp data-start=\"5099\" data-end=\"5358\"\u003eFor many factories, older Fanuc controls are still valuable production assets. A correct \u003cstrong data-start=\"5188\" data-end=\"5206\"\u003eA20B 2902 0021\u003c\/strong\u003e replacement can help preserve the original memory configuration, reduce downtime, and keep the CNC system working without unnecessary hardware changes.\u003c\/p\u003e\n\u003ch4 data-start=\"5360\" data-end=\"5368\"\u003eFAQ\u003c\/h4\u003e\n\u003cp data-start=\"5370\" data-end=\"5452\"\u003e\u003cstrong data-start=\"5370\" data-end=\"5397\"\u003eWhat is A20B-2902-0021?\u003c\/strong\u003e\u003cbr data-start=\"5397\" data-end=\"5400\"\u003eIt is a Fanuc PC component card used in CNC systems.\u003c\/p\u003e\n\u003cp data-start=\"5454\" data-end=\"5539\"\u003e\u003cstrong data-start=\"5454\" data-end=\"5491\"\u003eWhat is this board identified as?\u003c\/strong\u003e\u003cbr data-start=\"5491\" data-end=\"5494\"\u003eIt is identified as a \u003cstrong data-start=\"5516\" data-end=\"5538\"\u003eDRAM memory module\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"5541\" data-end=\"5637\"\u003e\u003cstrong data-start=\"5541\" data-end=\"5576\"\u003eIs A20B-2902-0021 discontinued?\u003c\/strong\u003e\u003cbr data-start=\"5576\" data-end=\"5579\"\u003eYes. This model has been discontinued by the manufacturer.\u003c\/p\u003e\n\u003cp data-start=\"5639\" data-end=\"5752\"\u003e\u003cstrong data-start=\"5639\" data-end=\"5672\"\u003eWhat is this module used for?\u003c\/strong\u003e\u003cbr data-start=\"5672\" data-end=\"5675\"\u003eIt is used to support memory-side functions inside Fanuc CNC control systems.\u003c\/p\u003e\n\u003cp data-start=\"5754\" data-end=\"5867\"\u003e\u003cstrong data-start=\"5754\" data-end=\"5789\"\u003eCan A20B-2902-0021 be repaired?\u003c\/strong\u003e\u003cbr data-start=\"5789\" data-end=\"5792\"\u003eYes. Repair may be possible depending on the card condition and fault type.\u003c\/p\u003e\n\u003cp data-start=\"5869\" data-end=\"5967\"\u003e\u003cstrong data-start=\"5869\" data-end=\"5907\"\u003eDo you provide worldwide shipping?\u003c\/strong\u003e\u003cbr data-start=\"5907\" data-end=\"5910\"\u003eYes. We supply Fanuc parts to customers around the world.\u003c\/p\u003e\n\u003chr data-start=\"5969\" data-end=\"5972\"\u003e\n\u003cp data-start=\"5974\" data-end=\"6112\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"5974\" data-end=\"6026\"\u003eNeed pricing or availability for A20B-2902-0021?\u003c\/strong\u003e\u003cbr data-start=\"6026\" data-end=\"6029\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/reacocnc.com\/pages\/contact-us\" title=\"Contact Us for Reliable industrial automation solutions - REACO CNC\" rel=\"noopener\" target=\"_blank\"\u003eContact REACO CNC\u003c\/a\u003e for stock status, repair support, and worldwide shipping options.\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","brand":"REACO CNC","offers":[{"title":"Brand New","offer_id":48593263362263,"sku":"A20B-2902-0021-new","price":253.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/3784\/4183\/files\/fanuc-a20b-2902-0021-dram-memory-module-card-main-buy-repair.jpg?v=1778231646","url":"https:\/\/reacocnc.com\/products\/fanuc-a20b-2902-0021","provider":"REACO CNC","version":"1.0","type":"link"}