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Four green DDR4 RDIMM modules with gold contacts, no heat spreaders, labeled OWC 32GB each

OWC

OWC 128GB (4x32GB) DDR4 3200 CL22 2Rx4 288-pin 1.2V ECC Registered RDIMM for Cisco UCS C4200

SKU CH-BQV3-EG86H

ECC registered DDR4 kit delivers 128GB across four 32GB modules at 3200 CL22 for Cisco UCS C4200 servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 128GB (4 x 32GB)

Show 2 more
  • 128 GB total capacity across four 32 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • ECC registered design detects and corrects data errors
  • CL22 latency at 1.2 V for efficient server operation
  • Validated replacement for Cisco UCS C4200 part numbers

Cisco UCS C4200 memory kit

This 128GB kit contains four 32GB DDR4 3200 CL22 registered ECC RDIMMs built for the Cisco UCS C4200 server. Each module runs at 1.2V with a 2Rx4 organisation and 288-pin form factor. It replaces Cisco part numbers 15-107238-01, UCSMRX32G2RW and UCSXMRX32G2RW. The kit is not compatible with standard desktop computers or with unbuffered and load-reduced ECC memory.

Installing registered ECC RDIMMs

Installation follows the standard 288-pin DIMM procedure for the Cisco UCS C4200 chassis. All four slots must be populated with identical modules to maintain correct rank interleaving and ECC integrity. Mixing these registered DIMMs with unbuffered or load-reduced memory will prevent the system from booting. The supplier tests every module in-house before shipping to reduce the chance of a dead-on-arrival stick.

Sustained server workload behaviour

Registered ECC construction corrects single-bit errors on the fly during continuous operation, protecting data integrity in multi-user and virtualised environments. CL22 latency at 3200 MT/s delivers steady throughput for database and compute tasks that run for hours rather than minutes. The 1.2V operating voltage keeps power draw predictable across the fully populated memory subsystem.

How it compares

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

Price $787.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.16 per GB
Cheaper than about 64% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D42R4128S
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS C4200

Other versions of this model

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Questions about this item

How can I confirm the 128GB kit is running at DDR4 3200 with CL22 after installation?

Enter the server BIOS or use a system-information tool such as CPU-Z and verify the memory speed reads 3200 MT/s and the CAS latency shows 22.

What ships in the box and is anything else required to use the kit?

The package contains four 32GB DDR4 3200 ECC Registered RDIMM modules; no extra parts are needed for a Cisco UCS C4200.

Why choose this 128GB (4×32GB) CL22 2Rx4 kit over other capacities?

It matches the Cisco UCS C4200 qualified part numbers 15-107238-01, UCSMRX32G2RW and UCSXMRX32G2RW and fills four slots with registered ECC memory.

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