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Single green 288-pin DDR5 RDIMM module with black chips no heat spreader

OWC

OWC 128GB DDR5 4800 PC5-38400 CL40 4Rx4 288-pin 1.1V ECC Registered RDIMM

SKU CH-QZVV-GT56N

A 128GB DDR5 ECC Registered RDIMM running at 4800MHz with CL40 latency for compatible Gigabyte servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • 128GB single module expands server capacity
  • DDR5 4800 speed handles heavy workloads
  • ECC registered design protects data integrity
  • 1V operation reduces power draw
  • Validated for Gigabyte E163-Z30 E263-Z30 E283-Z90 E283-Z91 G293-Z20

128GB DDR5 ECC RDIMM for Gigabyte servers

This single 128GB DDR5 4800 registered DIMM delivers 4Rx4 organisation at 1.1V with CL40 latency. It is built for Gigabyte E163-Z30, E263-Z30, E283-Z90, E283-Z91 and G293-Z20 platforms. The module carries ECC and registered buffering for data integrity in multi-socket workloads.

Workstation and server builders needing registered

Buyers upgrading standard desktop PCs cannot use this module because it requires registered ECC support. Systems that only accept unbuffered or load-reduced DIMMs are also incompatible. Environments that cannot populate a 288-pin DDR5 slot should look at other form factors.

Straightforward DIMM insertion with one caveat

Align the notch on the 288-pin edge connector and press firmly until the retention clips engage; no tools are required. The most common issue is attempting to mix this registered ECC stick with unbuffered or load-reduced modules, which prevents the system from posting. Ensure all slots follow the same registered ECC specification.

How it compares

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

Price $3,392.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 40
Higher than about 70% of the 483 comparable items (median 22).
Price per GB $26.51 per GB
Pricier than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGigabyte E163-Z30
Gigabyte E263-Z30
Gigabyte E283-Z90
Gigabyte E283-Z91
Gigabyte G293-Z20

Other versions of this model

5 more in the same range

Questions about this item

Which Gigabyte server models accept this 128GB DDR5 4800 ECC Registered RDIMM?

It is validated for Gigabyte E163-Z30, E263-Z30, E283-Z90, E283-Z91 and G293-Z20 systems.

Can I add this 4Rx4 registered module to existing unbuffered or load-reduced DIMMs in the same server?

No, registered memory cannot be mixed with unbuffered or load-reduced DIMMs; all slots must use registered modules.

How do I confirm the module is running at its rated 4800 MT/s CL40 after installation?

Check the BIOS memory info or OS tools such as dmidecode to verify DDR5-4800 speed and CAS latency 40.

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