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Micron Technology

MTC20F2085S1RC48BR - 32GB DDR5-4800 ECC RDIMM | Micron

Référence : MTC20F2085S1RC48BR ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.1 V (VDD) Vdss 32 GB Memory
À partir de $915 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-11
Tarifs dégressifs
Qté Prix unitaire Total
1 $989 $989,00
10 $975 $9 750,00
100 $955 $95 500,00
500 $935 $467 500,00
1 000 $915 $915 000,00
ℹ️ Tous les prix sont en USD

MTC20F2085S1RC48BR Présentation

The Micron Technology MTC20F2085S1RC48BR is a 32GB DDR5-4800 ECC Registered DIMM (RDIMM) server memory module operating at 1.1V with CL40 CAS latency, dual-rank x8 organization (2Rx8), in a 288-pin registered dual in-line memory module form factor.

A Registered DIMM (RDIMM) is a type of memory module used in servers and workstations in which address and command signals are buffered by a register chip between the memory controller and the DRAM devices. This buffering reduces electrical loading on the memory controller, allowing higher-capacity and higher-density memory populations than unbuffered UDIMMs. RDIMMs sit within the memory module hierarchy of DRAM -> DDR5 SDRAM -> registered memory module, and they include on-module ECC (Error Correction Code) to detect and correct single-bit memory errors for data integrity.

Key features of the MTC20F2085S1RC48BR include 32GB capacity in a dual-rank x8 configuration, PC5-38400 bandwidth at DDR5-4800 data rates, CL40 CAS latency, and 1.1V operation that lowers power consumption versus DDR4 equivalents. DDR5 moves the power management to an on-module PMIC (Power Management IC) and doubles bank groups versus DDR4, improving effective bandwidth and channel efficiency.

Technically, this RDIMM uses registered address/command signaling with ECC, making it suitable only for server platforms with registered-memory controllers. It is NOT compatible with desktop UDIMM slots and cannot be mixed with unbuffered or load-reduced (LRDIMM) modules in the same channel.

Typical applications include general-purpose server hosts, edge compute nodes, virtualization hosts with moderate VM density, and OEM server builds from vendors such as Dell PowerEdge and HPE ProLiant platforms using Intel Xeon Scalable (including Sapphire Rapids) processors.

Design consideration: always populate memory channels symmetrically per the platform OEM memory population rules, and verify BIOS/UEFI support for DDR5-4800 at the installed CPU; data rate may derate at higher DIMM populations.

This page synthesizes distributor pricing, verified cross-references to OWC and NEMIX replacement modules, and practical deployment notes not consolidated in the manufacturer datasheet.

Alternatives de remplacement direct pour MTC20F2085S1RC48BR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

MTC20F2085S1RC48B

✅ Remplacement direct
📦 288-Pin RDIMM
base part number of the same 32GB DDR5-4800 2Rx8 1.1V CL40 ECC RDIMM; order-code variant only

📋 Alternative de référence (hors catalogue)

MTC20F2085S1RC48BA1

✅ Remplacement direct
📦 288-Pin RDIMM
same 32GB DDR5-4800 EC8 RDIMM family revision sold at DigiKey/Mouser; same 2Rx8, 1.1V, CL40 specs

📋 Alternative de référence (hors catalogue)

MTC20F2085S1RC48BA1R

✅ Remplacement direct
📦 288-Pin RDIMM
same 32GB DDR5-4800 ECC RDIMM 2Rx8 with R (tape/order-code) suffix per ramquote cross-reference

📋 Alternative de référence (hors catalogue)

OWC 32GB DDR5-4800 RDIMM

✅ Remplacement direct
📦 288-Pin RDIMM
cross-brand exact-match replacement: same 32GB, DDR5-4800 PC5-38400, CL40, 2Rx8, 288-pin, 1.1V ECC Registered

📋 Alternative de référence (hors catalogue)

NEMIX RAM 32GB DDR5-4800 RDIMM

✅ Remplacement direct
📦 288-Pin RDIMM
cross-brand exact-match replacement: 32GB 1x32GB DDR5-4800 PC5-38400, 2Rx8 registered ECC, 1.1V, CL40, 288-pin

📋 Alternative de référence (hors catalogue)

MTC20F2085S1RC48BR Valeurs maximales et caractéristiques électriques

Memory Capacity 32 GB
Type de mémoire DDR5 SDRAM
Module Type 288-Pin ECC Registered DIMM (RDIMM)
Débit de données 4800 MT/s (PC5-38400)
Latence CAS CL40
Operating Voltage 1.1 V (VDD)
Organisation de la mémoire 2Rx8 (dual rank, x8)
ECC Yes (on-module ECC)
Buffered/Registered Registered (RDIMM)
Nombre de broches 288
Bandwidth 38.4 GB/s per module (PC5-38400)
PMIC On-module power management IC (DDR5)
Compatible Platforms Intel Xeon Scalable (Sapphire Rapids), Dell PowerEdge, HPE ProLiant servers

Guide de configuration des broches du MTC20F2085S1RC48BR standard

Configuration des broches du MTC20F2085S1RC48BR (boîtier standard). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.

Schéma de brochage du boîtier standard pour le MTC20F2085S1RC48BR

Aucune donnée de brochage détaillée disponible pour MTC20F2085S1RC48BR.

Consultez la fiche technique pour la configuration complète des broches.

Applications typiques

MTC20F2085S1RC48BR convient pour 6 applications: General-Purpose Server Memory, Edge Compute Nodes, Virtualization Hosts (Low-to-Moderate VM Density), OEM Server Builds (Dell PowerEdge / HPE ProLiant), Memory Upgrades and Fleet Refresh, Data Center Storage and Compute Appliances.

🖥️

General-Purpose Server Memory

The MTC20F2085S1RC48BR's 32GB DDR5-4800 capacity with 2Rx8 organization is optimized for general-purpose server workloads. At 4800 MT/s with CL40 latency, it delivers PC5-38400-class bandwidth that keeps database, web, and file services responsive. In an 8-channel Xeon Scalable platform, eight of these modules provide 256GB per CPU at full channel bandwidth. Deployed in matched sets per the OEM population rules, the dual-rank design improves rank interleaving for better sustained throughput. Its 1.1V operation reduces module power versus DDR4, easing thermal design in dense 1U/2U chassis with on-module PMIC regulation.

🌐

Edge Compute Nodes

Edge compute appliances benefit from the MTC20F2085S1RC48BR's balance of density and efficiency. According to Corewave Labs, this module is explicitly designed for edge compute use, where space and power budgets are constrained. The 1.1V DDR5 interface with on-module PMIC reduces per-module power draw, lowering heat rejection requirements in passively cooled or conduction-cooled edge enclosures. The 32GB dual-rank capacity supports local caching, inferencing buffers, and container runtimes at DDR5-4800 speeds. Registered ECC signaling protects against single-bit errors that could silently corrupt edge analytics output over long unattended service intervals.

🖥️

Virtualization Hosts (Low-to-Moderate VM Density)

For virtualization hosts running low-to-moderate VM density, the MTC20F2085S1RC48BR provides 32GB increments that let administrators size memory pools economically. On-DIMM ECC corrects single-bit errors that would otherwise crash hypervisors or corrupt VM images, while DDR5-4800 bandwidth supports multiple concurrent guest workloads. Populating all channels with matched 32GB modules on a Sapphire Rapids-class Xeon maximizes memory bandwidth per vCPU allocation. The dual-rank 2Rx8 topology improves controller scheduling efficiency compared to single-rank modules of the same capacity, delivering measurable gains in multi-VM benchmark throughput at 4800 MT/s.

🔧

OEM Server Builds (Dell PowerEdge / HPE ProLiant)

The MTC20F2085S1RC48BR fits validated memory lists of major OEM server platforms including Dell PowerEdge and HPE ProLiant systems with Intel Xeon Scalable processors, per the NEMIX compatibility cross-reference for this exact part number. OEM integrators value Micron's DID-agnostic SKU policy, which lets Micron substitute in-stock compatible server memory to shorten lead times without changing qualified specifications. Standardizing on this 32GB DDR5-4800 2Rx8 1.1V CL40 RDIMM across a fleet simplifies sparing, RMA handling, and BIOS memory-configuration validation while maintaining full ECC registered signaling required by server memory controllers.

⚡

Memory Upgrades and Fleet Refresh

For upgrading existing DDR5-generation servers, the MTC20F2085S1RC48BR is a recognized exact-match upgrade path: OWC and NEMIX both market 32GB DDR5-4800 2Rx8 288-pin 1.1V CL40 ECC RDIMMs specifically as replacements for this Micron part in Sapphire Rapids, Xeon Scalable, PowerEdge, and ProLiant systems. Its 32GB capacity lets technicians scale memory per chassis incrementally rather than replacing entire kits. Because DDR5 modules are keyed differently from DDR4, insertion is mechanically foolproof, and registered-ECC signaling ensures the upgrade is recognized at full capacity and rated speed by the server memory controller on first boot.

🖥️

Data Center Storage and Compute Appliances

Storage controllers and hyperconverged appliances require reliable, high-bandwidth memory for write caches, metadata, and deduplication tables. The MTC20F2085S1RC48BR's 32GB dual-rank DDR5-4800 configuration supplies the sustained bandwidth these data paths demand, while on-module ECC prevents silent bit errors from corrupting parity or index structures. Its 1.1V rail and on-module PMIC simplify power-plane design in appliance backplanes. In clustered storage nodes, matched 32GB RDIMM populations keep NUMA memory bandwidth symmetric across sockets, avoiding cross-socket traffic penalties. Registered operation supports the high module counts typical of 2U4N storage platforms.

Récapitulatif des produits recommandés

MTC20F2085S1RC48BA1 Same-family sibling RDIMM for matched-set population Utilisé dans : General-Purpose Server Memory, Memory Upgrades and Fleet Refresh MTC20F2085S1RC48B Base-part equivalent for edge build standardization Utilisé dans : Edge Compute Nodes, OEM Server Builds (Dell PowerEdge / HPE ProLiant), Data Center Storage and Compute Appliances MTC20F2085S1RC48BA1R Family variant for volume matched-set deployments Utilisé dans : Virtualization Hosts (Low-to-Moderate VM Density)
What is the MTC20F2085S1RC48BR?
The MTC20F2085S1RC48BR is a Micron 32GB DDR5-4800 ECC Registered DIMM (RDIMM) server memory module. It operates at 1.1V with CL40 CAS latency in a dual-rank x8 (2Rx8) organization on a 288-pin registered module. According to the Micron part catalog and distributor listings, it targets general-purpose servers, edge compute, and virtualization hosts requiring registered DDR5 memory.
What are the key specifications of MTC20F2085S1RC48BR?
Key specifications: 32GB capacity, DDR5-4800 data rate (PC5-38400 bandwidth class), CL40 CAS latency, 1.1V VDD, dual-rank x8 (2Rx8) organization, on-module ECC, and 288-pin RDIMM form factor. According to Micron and distributor data (Microchip USA, Microless), this module is intended for server platforms with registered-memory controllers such as Intel Xeon Scalable (Sapphire Rapids).
What is the price of MTC20F2085S1RC48BR?
As of 2026-10-11, replacement-grade equivalents of this exact spec (32GB DDR5-4800 PC5-38400 2Rx8 1.1V CL40 288-pin RDIMM) retail around $988.88 to $1,249.99 at consumer channels such as OWC via Newegg and Best Buy. OEM Micron unit pricing varies by volume and channel; request a quote from XAIPART for volume pricing on the genuine Micron part.
Is MTC20F2085S1RC48BR compatible with desktop PCs?
No. The MTC20F2085S1RC48BR is a registered (buffered) ECC RDIMM and is only compatible with server or workstation platforms whose memory controllers support registered DDR5 modules. Per OWC's compatibility guidance for this part class, it will not work in standard desktop computers and cannot be mixed with unbuffered (UDIMM) or load-reduced (LRDIMM) memory in the same channel.
What is the difference between MTC20F2085S1RC48BR and MTC20F2085S1RC48B?
The MTC20F2085S1RC48B is the base Micron part number and MTC20F2085S1RC48BR is a packaging/order-code variant of the same 32GB DDR5-4800 RDIMM specification. Micron's DID-agnostic SKU policy means Micron may substitute and ship in-stock compatible server memory under these related codes with identical specs: 32GB, DDR5-4800, 2Rx8, 1.1V, CL40, 288-pin ECC RDIMM.
What is the difference between MTC20F2085S1RC48BR and MTC20F2085S1RC48BA1?
Both are Micron 32GB DDR5-4800 ECC RDIMMs with 2Rx8 organization at 1.1V and CL40. The MTC20F2085S1RC48BA1 (listed at Mouser and DigiKey as DDR5 32GByte EC8 RDIMM) is a revision/speed-bin sibling within the same MTC20F2085S1RC48B family sharing the same 288-pin footprint and key electrical specs. Functionally they are interchangeable in platforms supporting DDR5-4800 RDIMMs, but always confirm your platform's validated memory list.
Can OWC 32GB DDR5-4800 RDIMM replace MTC20F2085S1RC48BR?
Yes. OWC sells a 32GB DDR5-4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered DIMM explicitly marketed as a replacement compatible with Micron MTC20F2085S1RC48B and MTC20F2085S1RC48BR. It matches capacity, data rate, rank, voltage, timing, and module type, making it a drop-in swap in servers that accept this RDIMM class. As of 2026-10-11 it retails around $988.88 to $1,249.99.
What is the best cross-brand equivalent for MTC20F2085S1RC48BR?
The closest cross-brand equivalents are the OWC 32GB DDR5-4800 2Rx8 ECC RDIMM and the NEMIX RAM 32GB DDR5-4800 (PC5-38400) 2Rx8 1.1V CL40 288-pin ECC Registered DIMM, both marketed as exact-match replacements for MTC20F2085S1RC48BR. Per Amazon's NEMIX listing, it is verified compatible with Sapphire Rapids, Xeon Scalable, PowerEdge, and ProLiant platforms. All share the same 288-pin RDIMM footprint and electrical spec.
Is MTC20F2085S1RC48BR suitable for virtualization hosts?
Yes. According to Corewave Labs, the MTC20F2085S1RC48BR is designed for edge compute, low-VM-density hosts, and general-purpose server use. Its 32GB dual-rank capacity provides good channel balance at DDR5-4800, and on-module ECC protects against single-bit errors that could corrupt VM state. For high-VM-density consolidation, populate all memory channels with matching modules to maximize bandwidth.
When should I choose MTC20F2085S1RC48BR over a 64GB RDIMM?
Choose the 32GB MTC20F2085S1RC48BR when you need finer capacity granularity, lower per-module cost, or when populating many memory channels on 8-channel Sapphire Rapids-class platforms where 32GB modules reach large totals without overspending. Choose 64GB modules only if total capacity per channel matters more than cost. The 2Rx8 organization of this module offers good rank interleaving at DDR5-4800 speeds.
Where to download the MTC20F2085S1RC48BR datasheet PDF?
The Micron part-detail page for MTC20F2085S1RC48B at micron.com provides product specs and downloadable datasheets. The governing document is Micron's 288-Pin DDR5 RDIMM Core Data Sheet, which defines the electrical and mechanical requirements for 288-pin, 1.1V DDR5 SDRAM registered DIMMs. A datasheet link is also available via distributor mirrors such as win-source.net and digchip.com.
Where can I find the MTC20F2085S1RC48BR pinout?
The MTC20F2085S1RC48BR pinout is defined in Micron's 288-Pin DDR5 RDIMM Core Data Sheet, which specifies the standard 288-pin DDR5 registered DIMM edge-connector pin map, including the keyed notch position that prevents insertion into DDR4 slots. Because a 288-contact edge pinout is defined by the JEDEC-standard module outline rather than an IC package diagram, refer to the Micron datasheet for the full contact map.
Is MTC20F2085S1RC48BR in stock and what is the lead time?
Stock status varies by channel: distributors such as DigiKey list the sibling part MTC20F2085S1RC48BA1 with same-day shipping, and resellers like Neox Computers list compatible alternatives available for immediate dispatch. Octopart shows at least one distributor carrying the exact MTC20F2085S1RC48BR. As of 2026-10-11, contact XAIPART for current stock and lead time on the genuine Micron part.
Can I mix MTC20F2085S1RC48BR with DDR4 or LRDIMM modules?
No. DDR5 modules are not backward or forward compatible with DDR4 - the 288-pin DDR5 edge connector has a different notch position and operates at 1.1V versus DDR4's 288-pin 1.2V layout. Per OWC compatibility notes for this part class, the module also cannot be mixed with unbuffered (UDIMM) or load-reduced (LRDIMM) memory. Populate channels only with matching DDR5 ECC RDIMMs per your server OEM's memory population rules.

Données de référence d'ingénierie pour MTC20F2085S1RC48BR — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the Micron MTC20F2085S1RC48BR when you need genuine OEM 32GB DDR5-4800 ECC RDIMMs for Micron-validated server builds, fleet standardization, or when Micron's DID-agnostic supply model shortens procurement lead times. Choose the Micron family variants MTC20F2085S1RC48B or MTC20F2085S1RC48BA1 when distributor stock (DigiKey/Mouser list the BA1) matters more than exact suffix. Choose the OWC or NEMIX RAM 32GB DDR5-4800 2Rx8 replacements when matching retail specs at consumer pricing for a single-server upgrade is the priority. Do NOT choose any of these if your platform uses unbuffered (desktop) or load-reduced memory - they are registered ECC RDIMMs only. Honest trade-off: third-party equivalents may lack OEM validated-memory-list status, which matters for enterprise support contracts; always check your server vendor's qualified vendor list before mixing brands.

Comparaison avec les alternatives

Paramètre Ce produit MTC20F2085S1RC48B MTC20F2085S1RC48BA1 OWC 32GB DDR5-4800 RDIMM NEMIX RAM 32GB DDR5-4800 RDIMM
Package 288-Pin RDIMM 288-Pin RDIMM - same 288-Pin RDIMM - same 288-Pin RDIMM - same 288-Pin RDIMM - same
Brand Micron Technology Micron Technology Micron Technology OWC NEMIX RAM
Capacity 32 GB 32 GB 32 GB 32 GB 32 GB
Data Rate 4800 MT/s (PC5-38400) 4800 MT/s 4800 MT/s 4800 MT/s (PC5-38400) 4800 MT/s (PC5-38400)
CAS Latency CL40 CL40 CL40 CL40 CL40
Voltage 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V
Organization 2Rx8 (dual rank) 2Rx8 2Rx8 2Rx8 2Rx8
ECC / Module Type ECC Registered (RDIMM) ECC Registered (RDIMM) ECC Registered (RDIMM) ECC Registered (RDIMM) ECC Registered (RDIMM)

Principaux différenciateurs

  • Genuine Micron server DRAM with DID-agnostic supply flexibility (vs OWC 32GB DDR5-4800 RDIMM)
  • Lower power per module (vs DDR4-3200 RDIMM equivalents)
  • Cost-efficient 32GB granularity for channel-matched population (vs 64GB DDR5 RDIMM equivalents)

Notes de conception

Never mix this RDIMM with UDIMM or LRDIMM modules in the same channel, and never attempt installation in desktop DDR4/DDR5 UDIMM slots - the registered signaling and ECC protocol require a server memory controller, and OWC's compatibility documentation for this part explicitly warns it will not work in standard desktop computers. DDR5's 288-pin keyed notch is positioned differently from DDR4, preventing accidental cross-generation insertion, but verify platform DDR5-4800 support in the CPU memory controller before purchase.

Follow the server OEM memory population rules exactly: install modules in matched sets (same capacity, rank, and data rate) across channels starting with the channel farthest from the CPU. Unbalanced populations derate the bus speed below DDR5-4800 or disable channels entirely. Because DDR5 moves power conversion onto the module via a PMIC, ensure BIOS/UEFI firmware includes the latest PMIC training updates; first-boot memory training at 4800 MT/s takes longer than DDR4 and should not be interrupted.

DDR5 RDIMMs at 4800 MT/s in dual-rank configuration generate meaningful heat in dense chassis. Verify chassis airflow meets the OEM's memory thermal specification, especially when populating all eight channels per CPU. Estimated: eight modules at roughly 4-6 W each add 32-48 W of memory heat load per socket area in a fully populated 1U server - confirm chassis fan curves account for this. Micron publishes module thermal specifications in its RDIMM documentation for derating above standard ambient conditions.

The MTC20F2085S1RC48BR operates at 1.1V VDD with an on-module PMIC converting the platform 12V (or 5V auxiliary) supply. Compared to DDR4 RDIMMs at 1.2V, DDR5 lowers DRAM core power while shifting regulation onto the module. Estimated: at PC5-38400 bandwidth class and dual-rank loading, plan server PSU headroom for approximately 5 W per module during full-bandwidth memory stress testing. Avoid mixing modules from different vendors in the same channel unless both appear on the platform's validated memory list.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

Compliance data not present in the provided verified web data. Refer to Micron's official product page and RoHS declarations for certification status.

Données vérifiées le : 2026-10-11 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

MTC20F2085S1RC48BR MTC20F2085S1RC48BR datasheet Micron MTC20F2085S1RC48BR 32GB DDR5-4800 RDIMM 32GB DDR5-4800 ECC registered DIMM 1.1V CL40 2Rx8 288-pin DDR5 RDIMM server memory 32GB MTC20F2085S1RC48BR replacement OWC NEMIX MTC20F2085S1RC48BR vs MTC20F2085S1RC48BA1 MTC20F2085S1RC48BR price buy Sapphire Rapids Xeon DDR5-4800 RDIMM 32GB upgrade what can replace MTC20F2085S1RC48BR is MTC20F2085S1RC48BR compatible with desktop PC Micron 32GB DDR5 RDIMM Dell PowerEdge ProLiant

Composants & termes associés

Micron Technology MTC20F2085S1RC48BR MTC20F2085S1RC48B MTC20F2085S1RC48BA1 OWC NEMIX RAM DDR5 SDRAM RDIMM Registered DIMM ECC (Error Correction Code) 288-Pin RDIMM PC5-38400 CL40 CAS latency Intel Xeon Scalable (Sapphire Rapids) Dell PowerEdge HPE ProLiant PMIC (Power Management IC) DRAM module hierarchy UDIMM (unbuffered DIMM) LRDIMM (load-reduced DIMM) server memory edge compute virtualization RoHS
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