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Green rectangular DDR5 RDIMM module with black memory chips and gold edge connector

Kingston Technology Corp.

Kingston Technology Corp. KSM56R46BD4-64HA 64GB DDR5 5600 CL46 2Rx4 Registered ECC server RAM

SKU CH-3RJM-1NT1E MPN KSM56R46BD4-64HA

64 GB DDR5 RDIMM runs at 5600 MHz with CL46 latency, registered ECC and dual-rank 2Rx4 organisation for server stability

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Memory timings46-45-45
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 64GB

Rank 2Rx4

Model Hynix, DRAM Lock

  • 64 GB capacity supports large workloads and virtualisation
  • DDR5 5600 MT/s delivers high throughput for demanding applications
  • CL46 latency with 46-45-45 timings optimises data access speed
  • Registered ECC with 2Rx4 rank ensures data integrity and signal stability
  • 10 V operation reduces power draw per module

Server-grade DDR5 capacity

This 64 GB DDR5-5600 registered DIMM delivers ECC protection and a dual-rank 2Rx4 layout for multi-socket servers and workstations that require data integrity at scale. It targets system builders who need maximum density per slot without moving to LRDIMM or 3DS modules.

Registered 288-pin integration

The module plugs into any DDR5 RDIMM slot wired for 1.10 V operation and presents a registered command-address bus that reduces electrical load on the memory controller. No heat spreader is fitted, so airflow across the PCB must be provided by the chassis or ducting design.

Sustained throughput at CL46

Rated timings of 46-45-45 at 5600 MHz maintain consistent bandwidth during long compute passes, virtualisation workloads or in-memory databases. The registered buffer and on-die ECC keep error correction active without the latency spikes seen on unbuffered modules under prolonged stress.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $1,593.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $24.91 per GB
Pricier than about 86% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKSM56R46BD4-64HA
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
Memory timings46-45-45
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size163 × 48 × 6 mm

Other versions of this model

5 more in the same range

Questions about this item

What is the CAS latency limit that appears first under sustained load?

The module runs at CL46 with 46-45-45 timings at the rated 5600 MHz speed.

How much heat and power does the 1.10 V registered DIMM produce when running all day?

It operates at 1.10 V without a heat spreader; registered buffering reduces electrical load on the memory controller during continuous operation.

Which motherboard slot and memory type must the system already have for this 288-pin DDR5 RDIMM to work?

A server or workstation board with a 288-pin DDR5 RDIMM slot that supports registered ECC memory is required.

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