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Two green DDR3 RDIMM modules with gold contacts and black chips, no heat spreaders

OWC

OWC 32GB (2x16GB) DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM Server RAM

SKU CH-JX1Z-WQ3GP

A 32 GB dual-channel kit of two 16 GB DDR3 1333 ECC registered RDIMMs for compatible servers and workstations

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB (2 x 16GB)

Rank 2Rx4

  • 32 GB kit (2 × 16 GB) doubles capacity for virtualization workloads
  • DDR3 1333 PC3-10600 CL9 matches server board specs for stable throughput
  • ECC registered RDIMM corrects single-bit errors to protect data integrity
  • 5 V JEDEC standard voltage keeps power draw predictable in dense racks
  • 240-pin 2Rx4 dual-rank layout fits registered DIMM slots without mixing issues

Server memory kit for registered ECC platforms

This 32 GB kit contains two 16 GB DDR3 1333 modules built to PC3-10600 CL9 timings at 1.5 V. It is designed for workstations and servers that require registered ECC RDIMM modules and will not operate in standard desktop systems or alongside unbuffered memory.

240-pin registered DIMMs with dual-rank layout

Each module uses a 2Rx4 organisation and fits the standard 240-pin DDR3 socket. The registered buffer reduces electrical load on the memory controller, allowing stable operation in multi-DIMM server configurations. No heat spreader is fitted, so airflow in the chassis must be sufficient for the bare PCB.

JEDEC and RoHS compliant dual-channel kit

The pair is tested together for matched performance and carries JEDEC and RoHS compliance markings. OWC supplies a limited lifetime warranty with an advanced replacement programme and free technical support, so a failed module can be swapped without returning the original first.

How it compares

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

Price $90.99
Cheaper than about 72% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $2.84 per GB
Cheaper than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R3D32R4032P
Total capacity32 GB (2 × 16 GB)
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
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

What speed does the DDR3 1333 PC3-10600 interface cap at in practice?

The modules run at 1333 MT/s with CL9 latency, which is the JEDEC-standard ceiling for DDR3-1333 registered DIMMs.

What physical slot and clearance do these 240-pin RDIMMs need?

They require a 240-pin DDR3 RDIMM socket; the sticks have no heat spreader, so they fit in standard-height server DIMM slots without extra clearance.

How are the two 16 GB sticks installed for dual-channel operation, and what step is often missed?

Populate the two sticks in the matched-channel slots specified by the server manual, then verify in BIOS that ECC and registered mode are both enabled.

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