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Two black DDR3 DIMM modules without heat spreaders

OWC

OWC 4GB (2x2GB) DDR3 1333 PC3-10600 CL9 desktop RAM

SKU CH-EV99-NEX29

A 4GB dual-channel DDR3 kit running at 1333MHz with CL9 latency and 1.5V operation

  • Capacity4GB (2 x 2GB)
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 4GB (2 x 2GB)

  • Dual-channel kit doubles bandwidth with two matched 2GB modules
  • DDR3 1333 speed and CL9 latency lift system responsiveness
  • 5V JEDEC voltage ensures broad desktop compatibility
  • Unbuffered non-ECC design keeps installation simple for DIY upgrades
  • 240-pin DIMM form factor fits standard desktop memory slots

Capacity and Kit Layout

This OWC kit supplies four gigabytes of DDR3 memory in a matched pair of two-gigabyte modules. It is intended for desktop and workstation systems that use 240-pin unbuffered DIMM slots and run at the standard 1.5 volt level. The CL9 latency and 1333 MHz rating follow the PC3-10600 JEDEC profile.

Build Integration

The dual-channel pair occupies two DIMM slots and leaves any remaining slots free for future expansion. No heat spreader is fitted, so the modules fit under low-profile coolers or in compact chassis without clearance issues. Installation is a straightforward DIY step that requires no extra cables, drivers or firmware changes.

Thermals Noise and Power

Operating at the JEDEC 1.5 volt specification keeps power draw low and heat output minimal in normal desktop workloads. The modules run passively with no moving parts, so they add no audible noise to the system. Standard case airflow is sufficient to maintain stable temperatures during typical multitasking sessions.

Highlights

  • Dual-channel kit doubles bandwidth with two matched 2GB modules
  • DDR3 1333 speed and CL9 latency lift system responsiveness
  • 5V JEDEC voltage ensures broad desktop compatibility
  • Unbuffered non-ECC design keeps installation simple for DIY upgrades
  • 240-pin DIMM form factor fits standard desktop memory slots

Specifications

BrandOWC
Part Number1U3D31R8004P
Capacity4GB (2 x 2GB)
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

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Questions about this item

What is the CAS latency limit of these CL9 DDR3-1333 modules under sustained workloads?

The kit runs at CL9 latency with a 1333 MHz data rate, so the timing ceiling you hit first during heavy use is the CL9 specification at the rated PC3-10600 speed.

How much heat and power do the 1.5 V unbuffered DIMMs produce when running all day?

Each module operates at the standard 1.5 V DDR3 voltage without a heat spreader, so thermal output and power draw stay at typical JEDEC levels for 2 GB unbuffered DIMMs.

Which motherboard slot type is needed for the 240-pin dual-channel kit?

A desktop or workstation board with DDR3 240-pin UDIMM slots is required; the kit installs as a matched pair for dual-channel operation.

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