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Eight green 288-pin DDR4 RDIMM modules in a row

OWC

OWC 512GB (8x64GB) DDR4 2933 CL21 ECC RDIMM memory upgrade

SKU CH-J036-JJQK4

Eight 64 GB DDR4-2933 ECC registered DIMMs totalling 512 GB for HP Synergy 480 Gen10 and 660 Gen10 servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 512GB (8 x 64GB)

  • ECC registered design protects server data integrity
  • 512GB kit with eight 64GB modules maximises capacity
  • DDR4 2933 CL21 speed matches HP Synergy specs
  • 2V operation reduces power draw per module
  • Backward compatible with 2133, 2400, 2666MHz systems

Server ECC Upgrade Kit

This 512GB kit contains eight 64GB DDR4 2933 CL21 ECC Registered RDIMM modules built for HP Synergy 480 Gen10 and 660 Gen10 servers. It targets administrators who need maximum registered capacity in those specific blade platforms.

288-Pin Registered Install

Modules seat like standard DDR4 RDIMMs but require all slots populated with identical 2Rx4 registered parts. Mixing with unbuffered or load-reduced DIMMs will prevent boot. The kit replaces multiple HP part numbers including P19045-K21 and P00930-B21.

Sustained 2933 Operation

Rated at PC4-23400 with 1.2V, the memory runs at 2933MHz under continuous server workloads. Backward compatibility allows operation at 2133, 2400 and 2666MHz if the platform demands lower speeds. JEDEC compliance ensures stable long-term throughput.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $2,809.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.49 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R4512K
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Synergy 480 Gen10
HP Synergy 660 Gen10

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the 512GB kit is running at 2933MHz CL21 after installation?

Enter the server BIOS or use a tool such as dmidecode to verify each 64GB module reports DDR4 2933 PC4-23400 CL21 2Rx4 1.2V ECC Registered and that all eight modules are recognised.

What comes in the box and what must I source separately?

The kit contains eight 64GB 288-pin DDR4 2933 ECC Registered RDIMM modules; no cables, brackets or additional parts are included and nothing else is required for installation.

Should I choose the 512GB 8x64GB kit or a different capacity for my HP Synergy 480 Gen10?

Select this 512GB kit when you need the maximum supported capacity across eight slots; choose a smaller kit only if your workload requires less memory or you plan to populate fewer slots.

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