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Green 288-pin DDR4 RDIMM module 128GB ECC registered no heat spreader

OWC

OWC 3R2D48R4128G 128GB DDR4 3200 ECC Registered RDIMM Server Memory

SKU CH-Q3Y6-05KHS

A single 128GB DDR4 3200 ECC Registered RDIMM module with CL22 latency, 1.2V operation, and 8Rx4 rank configuration for server and workstation upgrades

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128GB capacity expands server memory headroom
  • DDR4 3200 speed supports high-throughput workloads
  • ECC registered design protects data integrity
  • 2V operation reduces power draw per module
  • JEDEC compliant ensures broad platform compatibility

Server memory for workstations and servers

This 128GB DDR4 ECC Registered RDIMM is built for workstations and servers that require error-correcting, registered memory. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced modules.

128GB single module at DDR4 3200

A single 128GB module running at DDR4 3200 (PC4-25600) with CL22 latency and 1.2V operation provides high density per slot. The 8Rx4 organisation suits platforms that support 8-rank registered DIMMs; systems limited to lower rank counts will not accept it.

Replaces Micron MTA144ASQ32G72PSZ-3S2B1

This module is a direct replacement for the listed Micron and Samsung part numbers. The upgrade is worthwhile when a server board has free 288-pin RDIMM slots and the firmware supports 128GB registered DIMMs.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $781.99
Pricier than about 77% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
CAS latency 22
Lower than about 80% of the 439 comparable items (median 40).
Price per GB $6.11 per GB
Cheaper than about 63% of the 6,064 comparable items (median $7.25 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

Questions about this item

Will this 128GB DDR4 3200 ECC Registered RDIMM work alongside my existing 8Rx4 modules?

Yes, it matches the 8Rx4 rank and 288-pin DDR4 3200 specification, but all installed DIMMs must be registered ECC — mixing with unbuffered or load-reduced memory is not supported.

How can I verify the module is running at the rated 3200 MT/s and CL22 latency after installation?

Check the BIOS or UEFI memory information screen; it should report DDR4 3200 (PC4-25600) with CAS latency 22 and 1.2 V operation for this DIMM.

Does the box contain only the single 128GB RDIMM, or are any cables, brackets or additional sticks included?

The package contains one 128GB DDR4 3200 ECC Registered 288-pin RDIMM; no cables, brackets or extra modules are supplied.

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