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Eight green DDR5 RDIMM modules in static-safe packaging

OWC

OWC 1TB (8x128GB) DDR5 4800 CL40 4Rx4 ECC Registered RDIMM for PowerEdge XE9680 memory upgrade

SKU CH-9YGH-YQSM4

Eight-module kit delivers 1 TB of DDR5 4800 ECC registered memory for Dell PowerEdge XE9680 servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 1TB (8 x 128GB)

  • 1TB total capacity from eight 128GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC registered design for data integrity
  • 1V operation reduces power draw
  • Built for Dell PowerEdge XE9680 servers

1TB DDR5 ECC RDIMM kit for PowerEdge XE9680

This OWC kit supplies 1TB of DDR5 memory across eight 128GB registered DIMMs. It is built for the Dell PowerEdge XE9680 server platform. The modules carry ECC and registered signalling for data integrity in multi-socket workloads. Standard desktop boards cannot use this memory.

Sustained operation at 4800 MT/s with CL40 latency

The DIMMs run at the JEDEC-standard DDR5 4800 speed (PC5-38400) with a CAS latency of CL40. Registered buffering and 4Rx4 organisation keep signal quality stable across all eight slots during continuous server duty. Voltage is fixed at 1.1V. No heat spreaders are fitted, so chassis airflow must handle module cooling.

4Rx4 registered ECC is the compatibility gate

Each module is a 288-pin DDR5 RDIMM with 4Rx4 rank structure and ECC registered operation. The PowerEdge XE9680 requires this exact combination; unbuffered, load-reduced or different-rank DIMMs will not work. Verify the server memory guide before ordering.

How it compares

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

Price $29,826.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $29.83 per GB
Pricier than about 85% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D54R41TBK
Total capacity1 TB (8 × 128 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 systemsDell PowerEdge XE9680

Other versions of this model

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Questions about this item

How much power does the 1.1V DDR5 4800 kit draw when the XE9680 runs all day?

Each 128GB module operates at 1.1V, the standard JEDEC voltage for DDR5 4800, so total draw scales with the eight populated slots and the server's own power management.

What must the XE9680 already have for this 1TB kit to work?

The server needs eight free 288-pin DDR5 RDIMM slots and a BIOS that supports 4Rx4 registered ECC modules at 4800 MT/s; no other hardware is required.

Can I mix these 4Rx4 registered ECC DIMMs with load-reduced or unbuffered modules already in the XE9680?

No. The manufacturer states these registered ECC modules cannot be mixed with unbuffered or ECC load-reduced memory in the same system.

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