Technical Snapshot

The CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit is a server-grade DDR5 RDIMM memory module designed for enterprise servers and workstations. Running at 6,000 MT/s with CL40 timings at 1.35V, The kit provides 64GB (4x16GB) of DDR5 memory . Backed by a Limited Lifetime 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 — Corsair WS DDR5

Corsair RAM

Corsair WS DDR5

CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit (CMA64GX5M4B6000Z40)

Name: CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit
Brand: Corsair
SKU: CMA64GX5M4B6000Z40
Availability: InStock

DDR5 · RDIMM · 6,000 MT/s · 64GB (4x16GB)

Speed 6,000 MT/s

Capacity 64GB (4x16GB)

Latency CL40

Voltage 1.35V

MPNCMA64GX5M4B6000Z40

EAN0840006690191

CategoryMemory

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Memory Specifications

Memory TypeDDR5

Form FactorRDIMM

Total Capacity64GB (4x16GB)

Speed6,000 MT/s

CAS LatencyCL40

Voltage1.35V

ECCYes

WarrantyLimited Lifetime

Full Specifications

Data sourced from Corsair product specifications

Memory
Product Line	WS DDR5
Memory Type	DDR5
Form Factor	RDIMM
Total Capacity	64GB (4x16GB)
Module Count	4
Module Capacity	16GB
Speed	6,000 MT/s
Timings & Voltage
CAS Latency	CL40
Voltage	1.35V
ECC	Yes
Product
Brand	Corsair
MPN	CMA64GX5M4B6000Z40
EAN	0840006690191
Warranty	Limited Lifetime
Physical
Weight	0.250 kg (estimated)
Package Dimensions	14 x 8 x 1 cm (estimated)

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CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit DatasheetPDF · Technical specifications

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Frequently Asked Questions

What systems is this memory compatible with?

The CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit 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 CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit runs at 6,000 MT/s with CL40 timings. This is a JEDEC standard speed that works automatically without BIOS configuration.

Does this kit run in dual-channel mode?

Yes, the CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit includes 4 modules which enable dual-channel mode when installed in the correct DIMM slots (typically A2+B2 or slots 2+4). Dual-channel doubles memory bandwidth compared to single-channel configuration. Check your motherboard manual for optimal slot placement.

Does this memory support ECC error correction?

Yes, the CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit 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 CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit comes with a Limited Lifetime warranty from Corsair.

JSON-LD Structured Data — Product + Breadcrumb

Product: CORSAIR WS DDR5 ECC RDIMM 64GB (4 x 16GB) DDR5-6000 CL40 Memory Kit
MPN: CMA64GX5M4B6000Z40
Schemas: Product + BreadcrumbList
Properties: 11 additionalProperty entries
Related: 4 isRelatedTo links