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Two black 240-pin DDR3 UDIMM modules without heat spreaders

OWC

OWC 16GB DDR3 1066 PC3-8500 CL7 ECC Unbuffered UDIMM Kit

SKU CH-2CK6-2CMJG

A 16 GB DDR3 1066 dual-channel kit with ECC unbuffered 240-pin DIMMs for desktop, workstation or server upgrades

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 16GB (2 x 8GB)

  • 16 GB dual-channel kit expands system memory for multitasking
  • DDR3 1066 PC3-8500 CL7 timing delivers responsive data access
  • ECC unbuffered design protects data integrity in critical workloads
  • 5 V JEDEC-standard voltage ensures broad platform compatibility
  • 240-pin UDIMM form factor fits standard desktop, workstation and server slots

16GB DDR3 ECC Kit for Workstations and Servers

This kit provides 16GB of DDR3 memory as two 8GB unbuffered UDIMMs. It is built for desktops, workstations and servers that require ECC error correction. The modules run at 1066MHz with a CL7 latency profile.

240-pin JEDEC Compliant Unbuffered Modules

Each stick uses the standard 240-pin DDR3 form factor and operates at 1.5V. The gold-edge connectors are unbuffered and carry no heat spreader, keeping the profile low for tight server or NAS chassis. Dual-channel packaging ensures matched pairs for multi-channel platforms.

Low-voltage ECC operation at 1.5V

The 1.5V supply reduces power draw compared with higher-voltage DDR3 variants. ECC circuitry detects and corrects single-bit errors without adding registered latency. In typical workloads the modules run cool and silent, drawing only the current needed for the 1066MHz data rate.

How it compares

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

Price $52.99
Cheaper than about 64% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB (2 × 8 GB)
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $3.31 per GB
Cheaper than about 90% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number8E5D32R8016P
Total capacity16 GB (2 × 8 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

What bandwidth does the DDR3 1066 PC3-8500 interface provide?

The DDR3 1066 PC3-8500 interface delivers a peak transfer rate of 8500 MB/s.

What motherboard slot and pin count does this 240-pin UDIMM require?

Each module uses a standard 240-pin DDR3 DIMM slot; the kit includes two 8 GB sticks for dual-channel operation.

How do I install the kit and what common step is missed?

Power off the system, open the case, align each module's notch with the slot key, press firmly until the retention clips click, then verify both sticks are recognised in BIOS.

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