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Black 240-pin DDR3 desktop DIMM module with black PCB and no heat spreader

OWC

OWC 4GB DDR3 1333 PC3-10600 CL9 240-pin 1.5V Non-ECC UDIMM desktop RAM

SKU CH-6EZM-003SA

A 4 GB DDR3 1333 CL9 240-pin 1.5 V unbuffered non-ECC desktop DIMM for JEDEC-standard upgrades

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Recommended forDesktops

Capacity 4GB

  • Boosts desktop responsiveness with a 4GB DDR3 1333MHz module
  • Meets JEDEC and RoHS standards for a warranty-safe upgrade
  • Runs at standard 1.5V for broad desktop compatibility
  • Simple 240-pin UDIMM installation suits most DIY upgrades
  • Unbuffered non-ECC design matches typical desktop requirements

4GB DDR3 1333 desktop module

This OWC module provides 4GB of DDR3 memory at 1333MHz with CL9 latency. It uses the standard 240-pin UDIMM form factor and operates at 1.5V. The non-ECC, unbuffered design targets desktop and workstation systems needing a straightforward capacity increase.

JEDEC-standard sustained operation

Built to JEDEC PC3-10600 specifications, the module maintains its rated 1333MHz speed and CL9 timing during extended workloads. The 2Rx8 organisation supports stable data throughput for multitasking and larger file handling without dropping below the standard profile. Compliance testing ensures consistent behaviour across long sessions.

Passive thermal profile at 1.5V

With no heat spreader fitted, the module relies on case airflow and its standard 1.5V operating voltage to manage thermals. Power draw stays within the DDR3 JEDEC envelope, producing minimal heat and no audible noise. The black PCB keeps the visual profile neutral inside any chassis.

How it compares

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

Price $17.99
Cheaper than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% 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 number1U3D32R804 GB
Total capacity4 GB
Product colorBlack
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Recommended forDesktops
More details
LED lightingNone

Other versions of this model

5 more in the same range

Questions about this item

How much heat or noise does the 1.5V DDR3 1333 module add when the system runs all day?

The stick operates at 1.5V with no heat spreader, so it adds only the normal warmth of a standard unbuffered DDR3 DIMM and produces no audible noise.

What must the motherboard provide for this 240-pin UDIMM to function?

A desktop or workstation board with a 240-pin DDR3 slot that accepts 1.5V non-ECC unbuffered modules at PC3-10600 CL9.

Will the CL9 timing force slower modules already installed to run at 1333 MHz?

The memory controller will run all populated slots at the lowest common speed and latency, so existing slower DDR3 DIMMs set the pace.

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