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Green bare circuit board DDR5 ECC RDIMM module with black chips and gold contacts

OWC

OWC 128GB DDR5 4800 CL40 4Rx4 288-pin 1.1V ECC RDIMM Gigabyte TO25-S10 S11 S12 Z10 Z11

SKU CH-YVDG-TTQVY

128GB DDR5 4800 ECC registered RDIMM for Gigabyte TO25-S10, S11, S12, Z10, Z11

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

Capacity 128GB

  • 128 GB capacity expands server memory headroom for virtualization workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive applications
  • ECC registered design detects and corrects errors to protect critical data integrity
  • 1 V operation reduces power draw in dense rack environments
  • Validated for Gigabyte TO25-S10 S11 S12 Z10 Z11 platforms ensuring drop-in compatibility

128GB DDR5 ECC RDIMM for Gigabyte TO25

This single 128GB DDR5 4800 CL40 4Rx4 288-pin 1.1V ECC registered RDIMM is built for Gigabyte TO25-S10, TO25-S11, TO25-S12, TO25-Z10 and TO25-Z11 systems. It targets administrators upgrading workstation or server memory capacity with a JEDEC-compliant module.

DDR5 4800 registered ECC limits

The DDR5 4800 PC5-38400 interface requires a platform that supports registered ECC RDIMMs; it will not operate in standard desktop boards or alongside unbuffered or load-reduced DIMMs. Mixing registered and unbuffered memory is not supported by the memory controller.

Replaces smaller registered DDR5 RDIMMs

This module replaces lower-capacity registered ECC DDR5 DIMMs when the workload demands more memory per slot. The upgrade is worthwhile when the system board has free 288-pin slots qualified for 4Rx4 registered modules and the application benefits from 128GB in a single slot.

How it compares

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

Price $3,479.99
Pricier than about 75% 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 $27.19 per GB
Pricier than about 76% 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 TO25-S10
Gigabyte TO25-S11
Gigabyte TO25-S12
Gigabyte TO25-Z10
Gigabyte TO25-Z11

Other versions of this model

5 more in the same range

Questions about this item

Should I pick the 128 GB module or combine smaller sticks?

This kit is a single 128 GB DDR5 4800 CL40 4Rx4 registered ECC DIMM; add identical modules to reach your platform's maximum capacity.

What does the 4800 MT/s rating deliver in a Gigabyte TO25 system?

The module runs at JEDEC-standard DDR5 4800 MT/s (PC5-38400) with CL40 latency at 1.1 V, giving the rated throughput when the server's memory controller is set to that speed.

How does the 288-pin ECC registered interface affect compatibility?

The 288-pin DDR5 RDIMM fits only workstations and servers that support registered ECC memory — it will not work in unbuffered desktop boards and must not be mixed with load-reduced DIMMs.

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