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Green 288-pin DDR5 ECC registered DIMM module with black chips, no heat spreader

OWC

OWC 4R8D54R4128G 128GB DDR5 4800 CL40 4Rx4 ECC RDIMM 1.1V

SKU CH-QBJQ-8N90M

A 128GB DDR5 4800 CL40 ECC registered DIMM for Fujitsu PRIMERGY CX2550 M7, CX2560 M7, RX1440 M2, RX4770 M7 and RX8770 M7 servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • 128GB capacity scales memory for demanding server workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • CL40 latency and 1.1V operation balance responsiveness with efficiency
  • ECC registered design protects data integrity in critical environments
  • Validated for Fujitsu PRIMERGY CX2550 M7 CX2560 M7 RX1440 M2 RX4770 M7 RX8770 M7

128GB DDR5 ECC RDIMM for Fujitsu PRIMERGY

This 128GB DDR5 4800 CL40 registered DIMM is built for Fujitsu PRIMERGY CX2550 M7, CX2560 M7, RX1440 M2, RX4770 M7 and RX8770 M7 servers. It delivers 128GB in a single 288-pin module operating at 1.1V with ECC and 4Rx4 organisation. The module targets administrators upgrading memory capacity in these specific platforms.

JEDEC DDR5 4800 registered interface limits

The module conforms to the JEDEC DDR5 4800 (PC5-38400) standard with CL40 latency and registered buffering. Registered DIMMs of this type cannot be mixed with unbuffered or load-reduced ECC memory in the same system. They are not compatible with standard desktop platforms that require unbuffered modules.

128GB single-module capacity and headroom

A single 128GB stick provides substantial capacity for memory-intensive server workloads such as virtualization, databases and large-dataset processing. The 4Rx4 rank structure supports high density within the DDR5 4800 speed envelope. Systems needing more capacity must add further modules of identical specification; the module itself cannot exceed its 128GB limit.

How it compares

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

Price $3,558.99
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).
Price per GB $27.80 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 number4R8D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsFujitsu PRIMERGY CX2550 M7
Fujitsu PRIMERGY CX2560 M7
Fujitsu PRIMERGY RX1440 M2
Fujitsu PRIMERGY RX4770 M7
Fujitsu PRIMERGY RX8770 M7

Other versions of this model

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Questions about this item

Should I buy the 128GB module or combine smaller capacities?

This listing is a single 128GB DDR5 4800 CL40 4Rx4 ECC RDIMM. Add more identical modules to reach the capacity your Fujitsu PRIMERGY server supports.

What does the 4800 CL40 rating deliver in a live server?

The module runs at 4800 MT/s with a CAS latency of 40 cycles, providing JEDEC-standard DDR5 bandwidth for the supported PRIMERGY CX2550 M7, CX2560 M7, RX1440 M2, RX4770 M7 and RX8770 M7 platforms.

How does the 288-pin DDR5 ECC RDIMM interface limit performance?

The 288-pin registered DIMM fits the DDR5 slots in the listed PRIMERGY servers. The registered buffer and ECC add one cycle of latency but enable the large 128GB capacity and error correction those platforms require.

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