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Eight green 240-pin DDR3 ECC registered DIMMs in a tray

OWC

OWC 128GB (8x16GB) DDR3 1600 PC3-12800 CL11 2Rx4 240-pin 1.5V ECC Registered RDIMM server RAM

SKU CH-72GS-8M0M2

Eight-module DDR3 ECC registered kit supplying 128 GB at 1600 MHz CL11 for servers and workstations

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 128GB (8 x 16GB)

Rank 2Rx4

  • 128 GB total capacity lets servers handle larger workloads
  • ECC registered design protects data integrity in critical applications
  • DDR3 1600 speed with CL11 latency delivers responsive performance
  • 5 V operation matches standard server power requirements
  • 8-module kit simplifies multi-channel population for IT teams

Server ECC Registered RDIMM Kit

This kit supplies 128GB of DDR3 server memory in eight 16GB registered DIMMs. It is built for workstations, servers, NAS systems and routers that require ECC registered modules. It will not work in standard desktop computers and cannot be mixed with unbuffered memory.

Thermals Power and Noise

The modules operate at the standard DDR3 voltage of 1.5V and have no heat spreaders. Registered buffering reduces electrical load on the memory controller, which helps keep power draw predictable in multi-DIMM configurations. Passive cooling relies on system airflow.

Capacity and Rank Configuration

The kit delivers 128GB total capacity using a 2Rx4 organisation across eight modules. This rank layout and the registered ECC design are the decisive factors for compatibility with qualified server and workstation platforms.

How it compares

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

Price $384.99
Pricier than about 65% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $3.01 per GB
Cheaper than about 89% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6D32R4128K
Total capacity128 GB (8 × 16 GB)
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.5 V

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 8 16GB DDR3 RDIMMs in the correct dual-channel order?

Populate matching-colour slots on each CPU socket so the eight modules form four identical pairs; the 2Rx4 registered DIMMs must go in registered-only slots and cannot be mixed with unbuffered memory.

Will the 1.5 V DDR3 1600 RDIMMs need any firmware updates or battery-backed maintenance later?

No firmware or battery maintenance is required; the modules are JEDEC-standard 1.5 V parts, so they run indefinitely unless a DIMM itself fails, at which point you replace the single faulty stick.

What thermal or voltage limit appears first when all eight 16 GB RDIMMs run at 1600 MHz continuously?

The 1.5 V supply rail is the first ceiling; sustained full-load traffic keeps the modules at their rated voltage, and exceeding it would violate the JEDEC spec before any temperature throttle engages.

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