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Eight black 240-pin DDR3 UDIMM modules in a 32GB kit

OWC

OWC 32GB (8x4GB) DDR3 1066 PC3-8500 CL7 ECC Unbuffered UDIMM Kit

SKU CH-G4F7-YMA5R

Eight 4 GB DDR3 1066 CL7 ECC unbuffered DIMMs totalling 32 GB at 1.5 V for workstations and servers

  • Total capacity32 GB (8 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 32GB (8 x 4GB)

  • ECC protection guards data integrity in critical workloads
  • 32GB total capacity across eight 4GB modules for dense configurations
  • DDR3 1066 CL7 timing delivers responsive throughput at 1.5V
  • 240-pin unbuffered UDIMM form factor fits standard desktop and server slots
  • JEDEC and RoHS compliance ensures warranty-safe, standards-based operation

32GB DDR3 ECC Kit for Workstations

This kit provides 32GB of DDR3 memory arranged as eight 4GB modules. It is built for desktops, workstations and servers that require ECC unbuffered DIMMs. The modules run at 1066MHz with a CL7 latency and operate at 1.5V. JEDEC compliance ensures broad compatibility with supported platforms.

Thermals and Power in Daily Use

The modules have no heat spreaders and rely on standard case airflow for cooling. At 1.5V they draw modest power consistent with DDR3 1066 operation. ECC circuitry adds a small overhead but does not change the thermal profile in normal workloads. Fan noise will depend on the chassis rather than the memory itself.

What the Bundle and Software Deliver

The package contains eight matched 240-pin UDIMMs packaged as a dual-channel kit. No additional software, LEDs or accessories are included. OWC validates every module in-house and backs the kit with a limited lifetime warranty and an advanced replacement program. Free technical support is available for installation questions.

How it compares

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

Price $128.99
Pricier than about 57% of the 3,647 comparable items (median $90.99).
Total capacity 32 GB (8 × 4 GB)
Higher than about 70% of the 3,251 comparable items (median 16 GB).
Price per GB $4.03 per GB
Cheaper than about 84% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number8E5D32R8032K
Total capacity32 GB (8 × 4 GB)
Product colorBlack
Performance
Rated speedDDR3 1066 (PC3 8500)
Memory
CAS latencyCL7
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Other versions of this model

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Questions about this item

Will this 32 GB kit work in a standard desktop motherboard?

The modules are 240-pin DDR3 UDIMMs rated at 1.5 V, so they fit any desktop board that accepts unbuffered ECC DDR3 at 1066 MHz.

Do I need to populate all eight slots to use the kit?

The kit contains eight matched 4 GB modules; you can install fewer, but the full 32 GB capacity requires all eight slots.

Is the memory registered or unbuffered?

These are unbuffered ECC DIMMs, not registered, making them compatible with workstation and server boards that support unbuffered ECC.

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