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Eight green DDR4 RDIMM modules with gold contacts and black chips

OWC

OWC 1TB (8x128GB) DDR4 2933MHz CL21 4Rx4 ECC Registered RDIMM server RAM

SKU CH-J0JA-GNZX7

Eight 128 GB DDR4 2933 MHz CL21 ECC registered RDIMMs totalling 1 TB for servers and workstations

  • Capacity1TB (8 x 128GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 1TB (8 x 128GB)

Voir les 4 autres configurations

Rank 4Rx4

  • Massive 1 TB capacity from eight 128 GB modules
  • ECC registered design protects data integrity in servers
  • JEDEC-compliant DDR4 2933 MHz speed ensures broad compatibility
  • Low 1.2 V voltage reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server Memory Kit 1TB (8×128GB) DDR4

This registered ECC DDR4 kit delivers 1TB across eight 128GB modules for servers, workstations and compatible NAS systems. It runs at DDR4 2933 (PC4-23400) with CL21 latency at 1.2V. The 4Rx4 registered design is built for multi-socket platforms that require error-correcting, buffered memory.

Installation notes for registered DIMMs

Modules are 288-pin RDIMMs that seat in standard DDR4 server slots; the registration buffer adds negligible insertion force. Common issues arise when mixing these registered sticks with unbuffered UDIMMs or populating slots in an order the platform firmware does not expect, which can prevent boot or disable ECC.

Verify platform requirements before ordering

Confirm your motherboard or chassis supports registered ECC DDR4 and can address 128GB per slot at 4Rx4 density. The kit is backward compatible with 2133, 2400 and 2666MHz buses, but the memory controller must explicitly support registered modules — standard desktop boards will not work.

Points forts

  • Massive 1 TB capacity from eight 128 GB modules
  • ECC registered design protects data integrity in servers
  • JEDEC-compliant DDR4 2933 MHz speed ensures broad compatibility
  • Low 1.2 V voltage reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Caractéristiques

BrandOWC
Part Number2R9D44R41TBK
Capacity1TB (8 x 128GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Autres versions de ce modèle

5 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

How can I confirm the 1TB DDR4 2933MHz kit is running at the correct speed and timings after installation?

Enter the server BIOS or use a tool such as CPU-Z to verify the memory reports 2933MHz (PC4-23400) with CL21 latency and 1.2V voltage across all eight 128GB modules.

What exactly ships in the box and are any extra components required for installation?

The package contains eight 128GB 288-pin DDR4 ECC Registered RDIMM modules totalling 1TB; no heat spreaders, cables or additional hardware are included or required.

Which capacity or speed version should I choose if my system only supports 2666MHz?

This kit is backward compatible with 2133MHz, 2400MHz and 2666MHz servers, so the same 1TB (8x128GB) CL21 4Rx4 modules will operate at the highest speed your platform allows.

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