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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 128GB DDR4 3200 CL22 8Rx4 288-pin 1.2V ECC RDIMM Supermicro A+ Server

SKU CH-1WFQ-JJXDA

A 128GB DDR4 3200 CL22 8Rx4 ECC registered RDIMM for Supermicro A+ Server models

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128 GB capacity in a single module
  • DDR4 3200 speed with CL22 latency
  • ECC registered for data integrity
  • 2 V operation reduces power draw
  • Compatible with five Supermicro A+ Server models

Server Memory Upgrade

This 128GB DDR4 3200 CL22 ECC Registered DIMM is built for Supermicro A+ Server platforms including the 1114S-WTRT 1124US-TNR 2013S-C0R 2014CS-TR and 2014S-TR. It delivers 128GB in a single 288-pin module running at 1.2V with an 8Rx4 rank configuration. The module targets administrators who need maximum capacity per slot for virtualization databases or large-scale compute workloads.

Replaces Lower Capacity RDIMMs

The jump is worth it when your current configuration hits a slot limit or when workloads exceed the bandwidth of 2133 2400 2666 or 2933MHz modules. This part steps up to PC4-25600 speed while maintaining JEDEC compliance and backward compatibility with those slower bus speeds. It will not work in standard desktop boards nor can it be mixed with unbuffered or load reduced ECC memory.

Build Integration

The registered buffer reduces electrical load on the memory controller allowing dense population of all available slots in supported Supermicro A+ Server chassis. No heat spreader is fitted so airflow must be managed by the system fans. The 1.2V operation matches the platform spec and the single module format leaves remaining DIMM slots free for future expansion.

How it compares

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

Price $672.99
Pricier than about 55% 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 22
Typical for this category: the median of 483 items is 22.
Price per GB $5.26 per GB
Cheaper than about 73% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3R2D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro A+ Server 1114S-WTRT
Supermicro A+ Server 1124US-TNR
Supermicro A+ Server 2013S-C0R
Supermicro A+ Server 2014CS-TR
Supermicro A+ Server 2014S-TR

Questions about this item

Will the 288-pin DDR4 RDIMM fit my Supermicro A+ Server 1114S-WTRT memory slots?

Yes, the 288-pin DDR4 ECC Registered DIMM is designed for the listed Supermicro A+ Server models including the 1114S-WTRT, 1124US-TNR, 2013S-C0R, 2014CS-TR and 2014S-TR.

Do I need to populate specific DIMM slots or follow a channel order when installing this 128GB 8Rx4 module?

Install the RDIMM in the slot sequence recommended by the Supermicro A+ Server manual for your CPU configuration; the common mistake is skipping the primary channel slot or mixing with unbuffered or load-reduced DIMMs.

When should I consider replacing this ECC Registered DDR4 module in a 24/7 server workload?

Replace the module if the system logs corrected ECC errors that climb steadily or if the server reports uncorrectable memory errors during POST or under sustained load.

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