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Single black DDR3 UDIMM with 240 gold pins and no heat spreader

OWC

OWC 4GB DDR3 1066 PC3-8500 CL7 ECC Unbuffered UDIMM

SKU CH-9JCV-86KQY

4 GB DDR3 1066 PC3-8500 CL7 ECC unbuffered UDIMM for desktops, workstations and servers

  • Capacity4GB
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 4GB

  • ECC protection prevents data corruption in critical workloads
  • 1066 MHz DDR3 speed delivers responsive multitasking
  • CL7 latency reduces access delays for smoother operation
  • 5 V JEDEC-standard voltage ensures broad platform compatibility
  • 240-pin unbuffered DIMM fits standard desktop and server slots

Single 4 GB DDR3 ECC UDIMM

This module is a 4 GB DDR3 1066 PC3-8500 CL7 ECC unbuffered UDIMM built for desktops, workstations and servers that accept 240-pin DDR3 memory. It operates at 1.5 V and uses a 2Rx8 organisation without a heat spreader.

JEDEC and RoHS compliant build

The stick meets JEDEC-standard timings and RoHS requirements so it can be installed without voiding the original system warranty. No extra software or drivers are bundled; the upgrade relies solely on the module’s factory-tested compliance.

Verify DDR3 240-pin ECC support

Before ordering, confirm that the motherboard or server board accepts DDR3 1066 ECC unbuffered DIMMs and has a free 240-pin slot. Check the system manual for maximum capacity per slot and whether mixed ECC and non-ECC populations are allowed.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • 1066 MHz DDR3 speed delivers responsive multitasking
  • CL7 latency reduces access delays for smoother operation
  • 5 V JEDEC-standard voltage ensures broad platform compatibility
  • 240-pin unbuffered DIMM fits standard desktop and server slots

Specifications

BrandOWC
Part Number8E5D32R804GB
Capacity4GB
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCYes
Buffered/RegisteredUnbuffered
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

Other versions of this model

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Questions about this item

Will this module fit a standard desktop motherboard with 240-pin DDR3 slots?

Yes, the stick is a 240-pin DDR3 UDIMM that plugs directly into any desktop board accepting DDR3 1066 or faster unbuffered memory.

Does the ECC feature work on a regular consumer desktop or only on workstation and server boards?

ECC functions only when the motherboard and CPU support it; most consumer desktops ignore the extra bits, so the module will run as non-ECC memory.

Can I mix this 4 GB stick with my existing 2 GB DDR3 1066 modules?

Mixing capacities is possible if all modules share the same voltage (1.5 V) and speed; the system will run at the slowest module's timings.

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