Technical Snapshot

The Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 is a server-grade DDR5 RDIMM memory module designed for enterprise servers and workstations. Running at 4,800 MT/s with CL40 timings at 1.1V, The module provides 64GB of DDR5 memory . Backed by a Limited 3-year warranty, this module targets server deployments, virtualization hosts, and high-availability computing environments requiring ECC error correction.

Use Case
Server deployments, virtualization, high-availability computing
Compatibility
RDIMM-compatible server motherboard
Category
DDR5 RDIMM — Micron DDR5 RDIMM
MICRON
Micron RAM
Micron DDR5 RDIMM

Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 (MTC40F2046S1RC48BR)

DDR5 · RDIMM · 4,800 MT/s · 64GB

Memory transfer rate in megatransfers per second. Higher MT/s provides more bandwidth for CPU-bound workloads.
Speed 4,800 MT/s
Total kit capacity across all modules. Dual-channel kits double memory bandwidth.
Capacity 64GB
CAS Latency — the delay between a memory access request and data availability.
Latency CL40
Operating voltage. Higher voltage allows faster speeds but increases power and heat.
Voltage 1.1V
MPNMTC40F2046S1RC48BR
EAN649528936912
CategoryMemory
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Memory Specifications

Memory TypeDDR5
Form FactorRDIMM
Total Capacity64GB
Speed4,800 MT/s
CAS LatencyCL40
Voltage1.1V
ECCYes
WarrantyLimited 3-year

Full Specifications

Data sourced from Micron product specifications
Memory
Product LineDDR5 RDIMM
Memory TypeDDR5
Form FactorRDIMM
Total Capacity64GB
Module Count1
Module Capacity64GB
Speed4,800 MT/s
Timings & Voltage
CAS LatencyCL40
Voltage1.1V
ECCYes
Product
BrandMicron
MPNMTC40F2046S1RC48BR
EAN649528936912
WarrantyLimited 3-year
Physical
Weight0.045 kg
Package Dimensions37.47 x 30.48 x 9.53 cm

Support

Micron Memory Compatibility ToolCheck motherboard compatibility for this module
Micron Support →
Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 — official product pageManufacturer specifications & documentation
Micron Product Page →
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Frequently Asked Questions

What systems is this memory compatible with?

The Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 is RDIMM server memory with ECC error correction. It requires a server or workstation motherboard with RDIMM support. NOT compatible with standard desktop motherboards. Check your server's QVL (Qualified Vendor List) for compatibility.

What speed does this memory run at?

The Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 runs at 4,800 MT/s with CL40 timings. This is a JEDEC standard speed that works automatically without BIOS configuration.

Can I add more memory later?

Yes, the Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 is a single 64GB module. You can add additional compatible DDR5 RDIMM modules to populate empty slots. For best performance, use matched modules of the same speed and capacity to enable dual-channel mode.

Does this memory support ECC error correction?

Yes, the Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 includes ECC (Error-Correcting Code) support, which detects and corrects single-bit memory errors. This is essential for servers, workstations, and mission-critical applications where data integrity is paramount.

What warranty does this memory come with?

The Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40 comes with a Limited 3-year warranty from Micron.

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Product: Micron 64GB DDR5-4800 RDIMM 2Rx4 CL40
MPN: MTC40F2046S1RC48BR
Schemas: Product + BreadcrumbList
Properties: 11 additionalProperty entries
Related: 4 isRelatedTo links