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Four green DDR3 ECC registered DIMMs with gold contacts

OWC

OWC 32GB (4x8GB) DDR3 1600 PC3-12800 CL11 1Rx4 240-pin 1.5V ECC Registered RDIMM Kit

SKU CH-VR3X-HR38T

A 32 GB quad-channel DDR3 ECC registered DIMM kit running at 1600 MHz CL11 for compatible servers and workstations

  • Capacity32GB (4 x 8GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCYes

Capacity 32GB (4 x 8GB)

Rank 1Rx4

  • ECC registered design protects data integrity in servers
  • 32GB kit (4 × 8GB) expands capacity for heavy workloads
  • DDR3 1600 PC3-12800 CL11 matches qualified system specs
  • 5V JEDEC standard voltage ensures broad compatibility
  • 240-pin RDIMM form factor fits workstation and NAS slots

Server-grade ECC registered memory

This 32 GB kit contains four 8 GB DDR3 1600 PC3-12800 modules built to JEDEC CL11 timings at 1.5 V. Each 240-pin RDIMM uses a 1Rx4 organisation and includes error-correcting code with registered buffering for stable operation in multi-module configurations. It is designed for select workstations, servers, NAS systems and routers that require registered ECC memory.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller, allowing all four modules to run at the rated 1600 MT/s without timing degradation during extended workloads. ECC circuitry detects and corrects single-bit errors on the fly, preventing silent data corruption in long-running compute or storage tasks. The 1.5 V operating voltage keeps power draw predictable across continuous duty cycles.

Upgrade context

The kit replaces unbuffered or lower-capacity DDR3 modules in systems that mandate registered ECC memory and support quad-channel population. It is not suitable for standard desktop platforms that accept only unbuffered non-ECC DIMMs, nor for systems limited to two slots per channel. The jump is worthwhile when the platform explicitly lists RDIMM support and the workload benefits from 32 GB of error-corrected capacity.

Highlights

  • ECC registered design protects data integrity in servers
  • 32GB kit (4 × 8GB) expands capacity for heavy workloads
  • DDR3 1600 PC3-12800 CL11 matches qualified system specs
  • 5V JEDEC standard voltage ensures broad compatibility
  • 240-pin RDIMM form factor fits workstation and NAS slots

Specifications

BrandOWC
Part Number1R6D31R4032S
Capacity32GB (4 x 8GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Other versions of this model

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Questions about this item

How much power does the 1.5V DDR3 1600 kit draw when the server runs all day?

Each module operates at 1.5V standard DDR3 voltage; total system draw depends on the platform's memory controller and how many slots are populated.

What must the motherboard provide for these 240-pin registered ECC DIMMs to function?

A workstation or server board with DDR3 RDIMM slots that accept 1Rx4 registered ECC modules at PC3-12800 speed.

Can I add this 32GB kit alongside older unbuffered DDR3 DIMMs already in the system?

No — registered ECC modules cannot be mixed with unbuffered memory; all slots must use registered ECC DIMMs of matching specification.

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