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Green rectangular DDR5 RDIMM circuit board with gold edge connector and black memory chips, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KTD-PE556D4-64G 64GB DDR5 5600 CL46 Registered ECC server RAM

SKU CH-Q99Z-ME84T MPN KTD-PE556D4-64G

64 GB DDR5 RDIMM running at 5600 MHz with ECC, registered signal processing, CL46 latency and 1.10 V operation

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rankDual Rank
  • 64 GB capacity supports large server workloads
  • DDR5 5600 speed delivers high memory bandwidth
  • CL46 latency ensures responsive data access
  • ECC and registered design protects data integrity
  • 10 V operation reduces power consumption

Server-grade 64 GB DDR5 RDIMM

This 64 GB DDR5 registered DIMM is built for server platforms that require error-correcting memory. It operates at 5600 MHz with CL46 latency and a dual-rank layout. The module uses a 288-pin interface and runs at 1.10 V. It targets administrators who need high-capacity, reliable memory for multi-socket systems.

Thermals and power at 5600 MHz

The module runs at the standard DDR5 voltage of 1.10 V, keeping power draw predictable in populated channels. No heat spreader is fitted, so airflow across the PCB manages thermals in typical server chassis. Registered signalling reduces electrical load on the memory controller during sustained workloads.

ECC and registered operation

On-die ECC corrects single-bit errors to protect data integrity in critical applications. Registered buffering stabilises command and address signals across large memory arrays. The dual-rank organisation allows higher density per slot without changing the platform’s channel count. No additional software or accessories are included.

How it compares

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

Price $688.99
Pricier than about 75% 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 $10.77 per GB
Pricier than about 70% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKTD-PE556D4-64G
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rankDual Rank
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size127 × 25 × 3 mm

Questions about this item

How do I install the 288-pin DDR5 RDIMM in my server, and what step is often missed?

Align the module's notch with the slot key, press firmly until both retention clips click, and verify the registered buffer initialises in BIOS — skipping the BIOS check is the step most often missed.

What maintenance or replacement will the 64GB dual-rank ECC module need later?

No scheduled maintenance is required; the module has no heat spreader, so keep chassis airflow clean, and replace only if ECC correctable-error counts rise or a DIMM fails POST.

What limit appears first on the 5600 MHz CL46 1.10V registered DIMM under sustained load?

The CL46 latency at 5600 MT/s is the first bottleneck; sustained throughput is capped by timing rather than the 1.10 V power envelope.

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