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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 8U5D31R802GB 2GB DDR3 1066 CL7 desktop RAM

SKU CH-ZTSE-2FJ4H

A 2GB DDR3 desktop module running at 1066MHz with CL7 latency and 1.5V operation

  • Capacity2GB
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.5V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 2GB

  • 2GB DDR3 capacity expands multitasking headroom for everyday workloads
  • 1066 MHz DDR3 speed delivers responsive data throughput for desktop tasks
  • CL7 CAS latency reduces access delay for snappier application switching
  • 5V JEDEC-standard voltage ensures broad compatibility with existing desktop platforms
  • 240-pin unbuffered non-ECC DIMM fits standard desktop memory slots for straightforward upgrades

Single 2GB DDR3 Module

This OWC desktop memory module delivers 2GB of DDR3 1066 performance in a single unbuffered DIMM. It targets owners of legacy desktops and workstations needing a straightforward capacity increase. The 240-pin form factor fits standard DDR3 slots on compatible motherboards.

DDR3 1066 CL7 at 1.5V

The decisive specification is the DDR3 1066 speed rating with CL7 latency at the standard 1.5V operating voltage. This JEDEC PC3-8500 profile ensures the module runs at its rated timing without manual configuration. Matching these figures to the board's supported memory standard confirms compatibility.

Fits Standard DDR3 Desktop Slots

Installation requires an available 240-pin DDR3 DIMM socket on a desktop or workstation motherboard. The non-ECC, unbuffered design suits consumer platforms that do not support registered or error-correcting memory. Adding this module frees up system resources for heavier multitasking and larger workloads.

Highlights

  • 2GB DDR3 capacity expands multitasking headroom for everyday workloads
  • 1066 MHz DDR3 speed delivers responsive data throughput for desktop tasks
  • CL7 CAS latency reduces access delay for snappier application switching
  • 5V JEDEC-standard voltage ensures broad compatibility with existing desktop platforms
  • 240-pin unbuffered non-ECC DIMM fits standard desktop memory slots for straightforward upgrades

Specifications

BrandOWC
Part Number8U5D31R802GB
Capacity2GB
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

Other versions of this model

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Questions about this item

What does the DDR3 1066 CL7 rating mean once the module is installed in a real desktop?

The module runs at 1066 MT/s with a CAS latency of 7 cycles, giving a theoretical peak bandwidth of 8500 MB/s; actual throughput depends on the memory controller and whether the board runs the DIMM at that speed or down-clocks it.

The spec lists PC3-8500 — what interface does that represent and what does it cap in practice?

PC3-8500 is the JEDEC designation for DDR3-1066 on a 240-pin unbuffered DIMM; the interface caps at 1066 MT/s and 1.5 V, so the system cannot exceed that data rate without overclocking.

What physical slot and clearance does this 240-pin DIMM need to fit and mount?

It requires a standard 240-pin DDR3 UDIMM socket on a desktop or workstation motherboard; the black PCB has no heat spreader, so it fits under most stock CPU coolers without height issues.

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