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Green 288-pin DDR4 ECC registered RDIMM module with black chips, no heat spreader

OWC

OWC 128GB DDR4 2933 PC4-23400 CL21 8Rx4 288-pin 1.2V ECC Registered RDIMM memory upgrade

SKU CH-R48J-AQ95R

A single 128GB DDR4 2933MHz ECC registered RDIMM for compatible ASRock server and workstation motherboards

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS Latency21
  • Voltage1.2V
  • ECCYes
  • 128 GB capacity in a single module
  • ECC registered design protects data integrity
  • JEDEC-standard DDR4-2933 CL21 at 1.2 V
  • Compatible with listed ASRock EP2C622 and EPC621 server boards
  • Backward compatible with 2133, 2400 and 2666 MHz speeds

Server ECC RDIMM Upgrade

This 128GB DDR4 registered DIMM is built for ASRock server motherboards including the EP2C622D16-2T, EP2C622D24LM2, EPC621D4I-2M, EPC621D6U-2T16R and WC621D8A-2T. It targets administrators who need ECC registered memory for workstation, server or NAS workloads. Standard desktop systems cannot use this module.

Capacity And Speed Headroom

The single module delivers 128GB at DDR4 2933 PC4-23400 with CL21 latency and 1.2V operation. JEDEC backward compatibility lets it run at 2666, 2400 or 2133MHz when the platform requires lower speeds. The 8Rx4 organisation suits dense configurations but cannot be mixed with unbuffered or load-reduced DIMMs.

Build And Connector Notes

The 288-pin RDIMM form factor fits server DIMM slots directly without a heat spreader. Registered signalling and on-board ECC provide the data integrity expected in multi-socket or mission-critical deployments. Compliance with JEDEC and RoHS standards supports warranty-safe upgrades across the listed ASRock platforms.

Přednosti

  • 128 GB capacity in a single module
  • ECC registered design protects data integrity
  • JEDEC-standard DDR4-2933 CL21 at 1.2 V
  • Compatible with listed ASRock EP2C622 and EPC621 server boards
  • Backward compatible with 2133, 2400 and 2666 MHz speeds

Specifikace

BrandOWC
Part Number2R9D48R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS Latency21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank8Rx4
Heat SpreaderNo
Compatible SystemASRock Server Motherboard EP2C622D16-2T
ASRock Server Motherboard EP2C622D24LM2
ASRock Server Motherboard EPC621D4I-2M
ASRock Server Motherboard EPC621D6U-2T16R
ASRock Server Motherboard WC621D8A-2T

Otázky k tomuto produktu

Will this 2933MHz DDR4 ECC registered module run stably alongside my existing 2400MHz sticks in the ASRock EP2C622D16-2T?

Yes, the module is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, so it will clock down to match your slower DIMMs while keeping ECC registered operation.

How can I confirm the 128GB 8Rx4 module is detected correctly after installation?

Check the BIOS memory summary or OS tool such as dmidecode; it should show a single 128GB DDR4 2933 CL21 ECC registered DIMM at 1.2V with 8Rx4 organisation.

Does the package include only the 288-pin RDIMM or are any brackets or cables supplied?

Only the 128GB DDR4 2933 PC4-23400 CL21 8Rx4 288-pin 1.2V ECC registered RDIMM is included; no brackets, cables or additional hardware are provided.

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