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Two black DDR3 UDIMM modules, 240-pin, no heat spreader

OWC

OWC 8GB (2x4GB) DDR3 1066 CL7 ECC Unbuffered UDIMM Kit

SKU CH-Z3HV-KXKXP

An 8 GB dual-channel DDR3-1066 ECC unbuffered UDIMM kit for desktops, workstations and servers

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 8GB (2 x 4GB)

  • ECC protection guards data integrity in workstations and servers
  • Dual-channel 8 GB kit (2 × 4 GB) expands multitasking headroom
  • DDR3 1066 CL7 timing delivers responsive throughput at 1.5 V
  • 240-pin unbuffered UDIMM fits standard desktop, workstation and server slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

8GB DDR3 ECC Kit for Workstations

This dual-channel kit provides 8GB of DDR3 1066 memory in two 4GB unbuffered UDIMMs with CL7 latency and ECC support. It is designed for desktop workstations, servers and NAS systems that require error-correcting memory for data integrity.

240-Pin UDIMM Installation Requirements

Each module uses the standard 240-pin DDR3 form factor and operates at 1.5V, fitting motherboards with DDR3 DIMM slots that accept unbuffered ECC memory. The kit occupies two slots and leaves remaining slots free for future expansion if the board supports higher capacities.

Low-Voltage Operation and Thermal Profile

Running at 1.5V without heat spreaders, the modules rely on case airflow for cooling during typical workloads. The JEDEC-standard design keeps power draw modest and noise non-existent, as there are no active cooling components on the sticks themselves.

How it compares

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

Price $35.99
Cheaper than about 75% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $4.50 per GB
Cheaper than about 79% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number8E5D32R8008P
Total capacity8 GB (2 × 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

5 more in the same range

Questions about this item

Will these modules work in a standard desktop motherboard that supports DDR3?

Yes, they are built to the JEDEC DDR3 standard at 1066 MHz with CL7 latency and 1.5 V operation, making them compatible with desktop boards that accept unbuffered ECC UDIMMs.

Does this kit require a system that specifically supports ECC memory?

The modules include ECC circuitry and are designed for workstations, servers and NAS units that can use the error-correction feature; a standard desktop without ECC support will typically ignore it.

What physical slot do these DIMMs fit?

Each module uses the 240-pin DDR3 UDIMM form factor, so they install directly into any desktop DDR3 DIMM slot keyed for that pin count.

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