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Single green circuit board with black memory chips and gold edge connector

OWC

OWC 128GB DDR5 5600 CL46 ECC Registered RDIMM 288-pin 1.1V 4Rx4 memory upgrade

SKU CH-RTK5-AYXEQ

A single 128GB DDR5-5600 ECC registered RDIMM with CL46 latency and 1.1V operation for compatible Gigabyte servers

  • Capacity128GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS Latency46
  • Voltage1.1V
  • ECCYes

Capacity 128GB

  • 128 GB single module doubles server capacity
  • ECC registered design protects data integrity in critical workloads
  • DDR5 5600 CL46 at 1.1 V balances speed with power efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Validated for Gigabyte H263-S62, H263-S63, H263-S64, MS03-6L0, MS03-CE0

Server-grade DDR5 ECC RDIMM

This 128GB OWC DDR5 5600 CL46 module is a registered ECC RDIMM built for workstations, servers, NAS systems and network switches. It runs at 1.1V with a 4Rx4 organisation and a 288-pin interface. The part is validated for Gigabyte H263-S62, H263-S63, H263-S64, MS03-6L0 and MS03-CE0 platforms.

Replaces non-ECC or unbuffered DIMMs

Registered ECC memory cannot be mixed with unbuffered or load-reduced modules, so this upgrade suits systems that already require registered DIMMs. The jump is worthwhile when data integrity and sustained capacity matter more than low-latency desktop speeds.

Single-module 128GB capacity

One DIMM delivers the full 128GB, freeing remaining slots for further expansion. The JEDEC-standard PC5-44800 timing ensures compatibility with qualified Gigabyte server boards without manual tuning. No heat spreader is fitted, so airflow clearance follows the chassis design.

Highlights

  • 128 GB single module doubles server capacity
  • ECC registered design protects data integrity in critical workloads
  • DDR5 5600 CL46 at 1.1 V balances speed with power efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Validated for Gigabyte H263-S62, H263-S63, H263-S64, MS03-6L0, MS03-CE0

Specifications

BrandOWC
Part Number5R6D54R4128G
Capacity128GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS Latency46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemGigabyte H263-S62
Gigabyte H263-S63
Gigabyte H263-S64
Gigabyte MS03-6L0
Gigabyte MS03-CE0

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Questions about this item

Does this 288-pin DDR5 RDIMM fit the Gigabyte H263-S62 server board?

Yes, the module is validated for Gigabyte H263-S62, H263-S63, H263-S64, MS03-6L0 and MS03-CE0 systems.

What BIOS setting or slot order is required when installing this 128 GB 4Rx4 ECC registered DIMM?

Populate the DDR5 RDIMM slots in the order specified by the Gigabyte server manual and ensure the BIOS is set to run registered ECC memory at 1.1 V.

How do I know when this 5600 CL46 registered module should be replaced?

Replace the DIMM if the system logs uncorrectable ECC errors or if memory diagnostics report persistent failures on this 128 GB module.

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