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Two green DDR5 ECC registered DIMMs with gold contacts, no heat spreader

OWC

OWC 64GB (2x32GB) DDR5 5600 CL46 2Rx4 288-pin 1.1V ECC Registered RDIMM server RAM

SKU CH-V3Z5-Q6FZB

Dual-channel 64 GB DDR5-5600 ECC registered RDIMM kit for workstations and servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (2 x 32GB)

  • 64 GB dual-channel kit expands server memory capacity
  • DDR5 5600 CL46 delivers high-speed data throughput
  • ECC registered design protects data integrity in critical workloads
  • 1 V operation reduces power draw per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

64GB DDR5 ECC RDIMM kit

This 64GB kit contains two 32GB DDR5 5600 CL46 registered DIMMs built for workstations and servers. Each module runs at 1.1V with a 2Rx4 layout and 288-pin form factor. ECC registered operation detects and corrects data errors in mission-critical workloads.

For ECC registered platforms only

These modules suit administrators upgrading compatible workstations, NAS units, servers or network switches that require registered ECC memory. They will not work in standard desktop computers or consumer motherboards that accept only unbuffered non-ECC RAM. Builders needing load-reduced or unbuffered DIMMs must choose a different product.

Registered ECC with 2Rx4 organisation

The registered buffer and ECC circuitry combine with a dual-rank 2Rx4 architecture to deliver data-integrity protection for multi-socket server boards. This specification decides whether the kit matches your platform's qualified memory list. Verify that your system documentation calls for DDR5 5600 registered ECC RDIMMs before purchasing.

How it compares

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

Price $1,645.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $25.72 per GB
Pricier than about 87% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D52R4064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the kit runs at 5600 MT/s with CL46 after installation?

Check the BIOS or UEFI memory information screen — it should report DDR5 5600 and CAS latency 46 for each 32 GB module.

What comes in the box and what must be purchased separately?

The box contains two 32 GB DDR5 5600 CL46 2Rx4 288-pin 1.1 V ECC Registered RDIMMs; no extra cables, brackets or software are included.

Which capacity kit should I choose for a dual-channel server board?

This 64 GB kit (2 × 32 GB) is built as a matched dual-channel pair for servers and workstations that require registered ECC memory.

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