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OWC

OWC 128GB DDR5 5600 CL46 4Rx4 ECC Registered RDIMM for Supermicro X13SET-PT X13SEVR-SP13F X13SEW-F X13SEW-TF

SKU CH-2TW9-Z9E7V

Single 128GB DDR5 5600 ECC registered RDIMM with CL46 latency and 1.1V operation for compatible Supermicro server motherboards

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • 128 GB capacity expands server memory headroom
  • DDR5 5600 speed delivers high data throughput
  • CL46 latency supports responsive workload execution
  • 1 V operation reduces power draw per module
  • ECC registered design protects data integrity in critical systems

128 GB DDR5 ECC Registered DIMM

This 128 GB DDR5 module runs at 5600 MT/s with CL46 latency and 1.1 V operation. It is a 288-pin 4Rx4 registered DIMM built for Supermicro X13SET-PT, X13SEVR-SP13F, X13SEW-F and X13SEW-TF motherboards. The ECC registered design targets workstations, NAS units, servers and network switches that require error correction and signal buffering. It will not work in standard desktop boards or alongside unbuffered or load-reduced memory.

Sustained server workloads

Registered buffering reduces electrical load on the memory controller, allowing stable operation when all slots are populated under continuous demand. ECC circuitry corrects single-bit errors on the fly, preventing data corruption during long compute or storage tasks. JEDEC-standard 5600 MT/s timing delivers consistent throughput without relying on overclocking headroom that can degrade under heat.

Build and installation notes

The module lacks a heat spreader, so airflow across the DIMM slots is the only cooling path — verify chassis fan placement before deploying in dense configurations. A single 128 GB stick lets you reach high capacity with fewer occupied slots, leaving room for future expansion if the board supports additional ranks. JEDEC and RoHS compliance ensures the parts meet baseline industry specifications for server deployment.

How it compares

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

Price $3,573.99
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 46
Higher than about 90% of the 483 comparable items (median 22).
Price per GB $27.92 per GB
Pricier than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro Motherboard X13SET-PT
Supermicro Motherboard X13SEVR-SP13F
Supermicro Motherboard X13SEW-F
Supermicro Motherboard X13SEW-TF

Other versions of this model

5 more in the same range

Questions about this item

How much heat or power does the 128GB DDR5 5600 CL46 4Rx4 ECC RDIMM produce when running continuously?

The module operates at 1.1V, the standard DDR5 voltage, which helps limit power draw and heat during sustained workloads. No heat spreader is fitted, so adequate case airflow is recommended.

What must my system already have for this 288-pin 1.1V ECC registered DIMM to function?

A Supermicro X13SET-PT, X13SEVR-SP13F, X13SEW-F or X13SEW-TF motherboard with DDR5 RDIMM slots, plus a CPU and chipset that support ECC registered memory.

Can I add this 4Rx4 registered module alongside older unbuffered or load-reduced DIMMs I already own?

No. The manufacturer states this ECC registered DIMM cannot be mixed with unbuffered or ECC load-reduced memory; all installed modules must be of the same registered type.

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