{"product_id":"16gb-32gb-64gb-ddr4-ram-enterprise-rdimm-2133mhz-3200mhz","title":"DDR4 RDIMM Server Memory 16GB 32GB 64GB 2133-3200MHz ECC Used","description":"\u003ch2\u003eEnterprise DDR4 RDIMM Server Memory — 16GB, 32GB, 64GB, 2133 to 3200 MT\/s\u003c\/h2\u003e\n\u003cp style=\"margin:12px 0 4px;padding:10px 14px;background:#eef6ff;border-left:4px solid #2d7fe8;border-radius:4px;font-size:14px;color:#1a1a1a;\"\u003e\u003cstrong\u003eDDR4 ECC RDIMM\u003c\/strong\u003e — 288-pin registered DIMM for servers · 16GB \/ 32GB \/ 64GB per module · 2133 \/ 2400 \/ 2666 \/ 2933 \/ 3200 MT\/s · 1.2V · side-band ECC · tested before shipment.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 16px;padding:10px 14px;background:#eaf7ee;border-left:4px solid #25a35a;border-radius:4px;font-size:14px;color:#1a1a1a;\"\u003e\u003cstrong\u003eIn stock.\u003c\/strong\u003e DDR4 RDIMM modules are in stock across 16GB, 32GB and 64GB capacities. Speed, rank and part number are confirmed per module when you send your enquiry — we do not publish prices.\u003c\/p\u003e\n\u003cp style=\"margin:14px 0 18px;\"\u003e\u003ca href=\"https:\/\/wa.me\/8613068616914?text=Hi%2C%20I%20would%20like%20a%20quote%20for%20DDR4%20RDIMM%20memory%20-%20capacity%3A%20%2C%20quantity%3A%20%2C%20destination%3A%20\" style=\"display:inline-block;padding:12px 26px;background:#25D366;color:#ffffff;text-decoration:none;border-radius:6px;font-weight:600;font-size:15px;\"\u003eGet a Quote on WhatsApp\u003c\/a\u003e   \u003ca href=\"\/pages\/contact\" style=\"display:inline-block;padding:12px 26px;background:#1a1a1a;color:#ffffff;text-decoration:none;border-radius:6px;font-weight:600;font-size:15px;\"\u003eRequest a Quote Form\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:14px 0;padding:14px 16px;background:#f7f9fc;border:1px solid #e3e8ef;border-radius:6px;font-size:15px;line-height:1.65;color:#1a1a1a;\"\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e This is used enterprise DDR4 ECC RDIMM server memory in 16GB, 32GB and 64GB modules, running at 2133, 2400, 2666, 2933 or 3200 MT\/s depending on the module and the platform it goes into. It fits Intel Xeon Scalable servers from the 1st to the 3rd generation and AMD EPYC 7001, 7002 and 7003 platforms — including the Dell PowerEdge R640, R740, R650, R750 and R7525, and the HPE ProLiant DL380 Gen10 and DL385 Gen10 Plus. Every module is tested on our own line, carries a 90-day warranty from delivery, and is quoted per module or per volume order.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDDR4 RDIMM\u003c\/strong\u003e is the registered ECC memory that most of the current second-hand server estate still runs on. Where UDIMM is unbuffered desktop memory and LRDIMM trades latency for maximum density, RDIMM sits in the middle: a register chip between the memory controller and the DRAM absorbs electrical load, which is what lets a board carry 16, 24 or 32 modules without the signal collapsing. That is why RDIMM, not UDIMM, is what a server takes — and why putting desktop memory in a server, or server memory in a desktop, does not work.\u003c\/p\u003e\n\u003cp\u003eWhat makes buying used DDR4 different from buying it new is that the important specification is not on the marketing page, it is on the module label. Two modules that both say \"32GB DDR4-3200\" can differ in rank count, organisation and part number, and whether one works in your chassis at full speed depends on those details. So we quote from the label, not from the headline capacity — send a photo of an existing module or the exact part number and we match against it.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:12px 0;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;width:32%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDDR4 ECC RDIMM (registered DIMM), 288-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacities\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16GB \/ 32GB \/ 64GB per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeeds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2133 \/ 2400 \/ 2666 \/ 2933 \/ 3200 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.0 GB\/s at 2133 · 19.2 at 2400 · 21.3 at 2666 · 23.4 at 2933 · 25.6 GB\/s at 3200 (per module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRanks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1Rx4 \/ 2Rx4 \/ 2Rx8 depending on capacity — confirmed per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eError correction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSide-band ECC (RDIMM); register on board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eForm factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eServer DIMM — not compatible with DDR3 or DDR5 slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUsed — tested on our own line before shipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90-day warranty from delivery.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAbout the image and the module brand:\u003c\/strong\u003e the image above is a reference image for the form factor, not a photograph of the exact modules in stock. Brand, rank and part number vary by batch — Samsung and SK hynix modules are what we normally hold, and we confirm the exact brand, rank and label on the modules before quoting. Send the part number or a photo of the label you need to match and we confirm brand, rank and speed before quoting.\u003c\/p\u003e\n\n\u003ch3\u003eWhich platforms this memory fits\u003c\/h3\u003e\n\u003cp\u003eDDR4 RDIMM covers a wide span of server generations, but the speed a module actually runs at is set by the processor's memory controller, not by the label on the stick. A 3200 MT\/s module in a platform that tops out at 2666 will run at 2666 — it does not fail, it just runs slower. The table below is what to expect per generation.\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:12px 0;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;width:38%;\"\u003ePlatform\u003c\/th\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;\"\u003eMemory speed supported\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eIntel Xeon Scalable 1st Gen\u003c\/strong\u003e (Skylake-SP)\u003c\/td\u003e\n\u003ctd\u003e2133 \/ 2400 \/ 2666 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eIntel Xeon Scalable 2nd Gen\u003c\/strong\u003e (Cascade Lake)\u003c\/td\u003e\n\u003ctd\u003e2666 \/ 2933 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eIntel Xeon Scalable 3rd Gen\u003c\/strong\u003e (Ice Lake)\u003c\/td\u003e\n\u003ctd\u003e2933 \/ 3200 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eAMD EPYC 7001\u003c\/strong\u003e (Naples)\u003c\/td\u003e\n\u003ctd\u003e2400 \/ 2666 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eAMD EPYC 7002 \/ 7003\u003c\/strong\u003e (Rome \/ Milan)\u003c\/td\u003e\n\u003ctd\u003e2933 \/ 3200 MT\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIn our own listings this memory is the right fit for the \u003ca href=\"\/products\/used-dell-poweredge-r640-8x2-5-barebone\"\u003ePowerEdge R640 barebone\u003c\/a\u003e (24 DIMM slots, Cascade Lake), the \u003ca href=\"\/products\/used-dell-poweredge-r650-8x2-5-2x-gold-6330\"\u003ePowerEdge R650\u003c\/a\u003e (16 slots, DDR4-3200), and the \u003ca href=\"\/products\/used-dell-poweredge-r7525-2x-epyc-7543\"\u003ePowerEdge R7525\u003c\/a\u003e (32 slots, DDR4-3200 on EPYC 7543). If you are building one of those and buying the chassis from us, ask for the memory in the same enquiry and we quote the build as one configuration.\u003c\/p\u003e\n\n\u003ch3\u003eDDR4 or DDR5 — which one your server takes\u003c\/h3\u003e\n\u003cp\u003eThey are not interchangeable. DDR5 has a different key notch, a different pin layout and a different voltage (1.1V against 1.2V), and no DDR4 board will accept it. The dividing line is processor generation: 1st to 3rd Gen Intel Xeon Scalable and EPYC 7001 to 7003 are DDR4 platforms; 4th Gen Xeon Scalable and EPYC 9004 are DDR5. If you are unsure which side of that line your machine sits on, send the model and we will tell you — guessing wrong on this is an expensive mistake, because the modules cannot be made to fit.\u003c\/p\u003e\n\u003cp\u003eOur \u003ca href=\"\/products\/32gb-16gb-ddr5-ram-enterprise-rdimm-4800mhz-5200mhz-5600mhz\"\u003eDDR5 RDIMM listing\u003c\/a\u003e covers the 4800 to 5600 MT\/s generation if you are building on a newer platform. Everything on this page is DDR4 and only fits DDR4 slots.\u003c\/p\u003e\n\n\u003c!--cpu-xref--\u003e\n\u003cp\u003e\u003cstrong\u003eNeed processors too?\u003c\/strong\u003e Need processors for this memory? DDR4 RDIMM pairs with \u003cstrong\u003eFCLGA4189 (3rd Gen Xeon Scalable, Ice Lake)\u003c\/strong\u003e and older platforms - our in-stock Ice Lake CPUs are 4310 \/ 4314 \/ 4316 \/ 5318Y \/ 6338 \/ 6336Y \/ 6348 \/ 8360Y, see the \u003ca href=\"\/collections\/server-processors\"\u003eserver processors range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhy buy memory from Zhongxin Data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on our own line\u003c\/strong\u003e — modules are checked before they are packed, not pulled from a pallet and shipped blind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuoted by part number, not by capacity\u003c\/strong\u003e — rank, organisation and speed are confirmed per module so what arrives matches what your chassis expects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatching service\u003c\/strong\u003e — send a photo of an existing module or its label and we identify what it is and what matches it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle modules or volume\u003c\/strong\u003e — we supply a handful to complete a build or enough to fill a rack, with volume tiers from 10 units.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e90-day warranty from delivery.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRequest a quote\u003c\/h3\u003e\n\u003cp\u003eThis is a quote-based listing — there is no public price. Tell us the capacity (16GB, 32GB or 64GB), the quantity, the destination country, and the server model or existing part number you are matching, and we come back with pricing for that exact specification. Quotes are valid for the day of issue.\u003c\/p\u003e\n\u003cp\u003eWhatsApp \u003cstrong\u003e+86 13068616914\u003c\/strong\u003e — include capacity, quantity and destination in the first message and we can answer in one round.\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;\"\u003e\u003ca href=\"https:\/\/wa.me\/8613068616914?text=Hi%2C%20I%20would%20like%20a%20quote%20for%20DDR4%20RDIMM%20memory%20-%20capacity%3A%20%2C%20quantity%3A%20%2C%20destination%3A%20\" style=\"display:inline-block;padding:12px 26px;background:#25D366;color:#ffffff;text-decoration:none;border-radius:6px;font-weight:600;font-size:15px;\"\u003eGet a Quote on WhatsApp\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eIs this DDR4 RDIMM memory in stock?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eYes — DDR4 RDIMM modules are in stock across 16GB, 32GB and 64GB capacities. Send the capacity, quantity and destination country and we will confirm availability for that combination, since speed and rank vary by module.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eWhich speed should I buy — 2666 or 3200?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eBuy the fastest your platform supports, but do not pay a premium for speed a slower processor cannot use. A 2nd Gen Xeon Scalable platform runs at 2933 maximum, so a 3200 module in it will simply run at 2933. Tell us the processor model and we will tell you which speed is the sensible buy.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eWhat is the difference between RDIMM, UDIMM and LRDIMM?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eRDIMM is registered — a register chip buffers the address and command signals, which is what lets a server board carry many modules. UDIMM is unbuffered and is desktop memory; it will not work in most servers. LRDIMM is load-reduced, uses a buffer chip for maximum density at some latency cost. This listing is RDIMM, which is what the majority of DDR4 servers take.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eWill DDR4 memory work in a DDR5 server?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eNo. The key notch and pin layout are physically different and the voltages differ (1.2V against 1.1V). DDR4 fits DDR4 boards only. If you are unsure which generation your server is, send the model and we will confirm before you order.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eDoes rank count matter — 1Rx4, 2Rx4, 2Rx8?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eIt matters for two reasons: how many modules a channel can carry, and whether the platform supports that organisation at the capacity you want. Mixing organisations in the same channel can also force the whole channel down to a slower speed. If you are adding to an existing set, send the label of one module you already have and we will match rank and part number rather than capacity alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eCan I mix capacities in the same server?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eYou can, but it is worth planning the population rather than filling slots as memory arrives. Misbalanced channels cost bandwidth — eight channels populated on one socket and four on the other is not the same machine as a balanced build, even at the same total capacity. Tell us the target total and the chassis and we will suggest a population plan.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eHow is the memory tested?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eModules are checked on our own test line before packing. If you need the specific test result for the modules being offered, ask before ordering and we will send it for that batch rather than a generic statement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eCan I buy in volume?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eYes. We supply single modules to complete a build and volume orders to populate a rack or a batch of servers, with volume tiers starting at 10 units. Send the capacity, quantity and destination and we will confirm what can be allocated on that configuration.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eHow do I get pricing?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eMessage WhatsApp +86 13068616914 with capacity, quantity and destination country. We quote against that specification and the quote is valid for the day of issue.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Zhongxin Data","offers":[{"title":"Default Title","offer_id":67968788168996,"sku":"DDR4-RDIMM-16G32G64G","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/6223\/6708\/files\/a9dcf2930bb7b439e280937bf9dd9a35.jpg?v=1793334391","url":"https:\/\/zhongxindata.hk\/products\/16gb-32gb-64gb-ddr4-ram-enterprise-rdimm-2133mhz-3200mhz","provider":"Zhongxin Data","version":"1.0","type":"link"}