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Single green 240-pin DDR3 DIMM with black chips, no heat spreader

OWC

OWC 4GB DDR3 1600 PC3-12800 CL11 2Rx8 240-pin 1.5V Non-ECC UDIMM desktop RAM

SKU CH-59PK-P1AJC

A 4 GB DDR3 desktop module with 2Rx8 organisation running at 1600 MHz, CL11 latency and 1.5 V operation

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Recommended forDesktops

Capacity 4GB

  • Boosts system responsiveness with a 4GB DDR3 1600 module
  • Meets JEDEC and ROHS standards for a warranty-safe upgrade
  • Runs at standard 1.5V for broad desktop compatibility
  • Unbuffered non-ECC design installs easily in 240-pin slots
  • Single 2Rx8 rank simplifies configuration for workstations

4GB DDR3 1600 UDIMM for desktop upgrades

This OWC module provides four gigabytes of DDR3 memory rated at 1600 MT/s with a CAS latency of 11. It uses the standard 240-pin UDIMM form factor and operates at 1.5 volts without ECC or registered buffering. The stick is intended for desktop and workstation systems that accept PC3-12800 memory.

Thermals and power in daily use

Running at the JEDEC-standard 1.5 volts keeps power draw low and heat output modest for a DDR3 DIMM. No heat spreader is fitted, so the bare PCB relies on normal case airflow to stay within safe temperatures. The module produces no audible noise because it has no moving parts.

Build integration and slot considerations

The 240-pin keying matches desktop DDR3 slots, and the unbuffered design works with consumer motherboards that support non-ECC memory. A single 4GB rank leaves additional DIMM slots free for further expansion up to the platform limit. JEDEC and RoHS compliance ensures the module meets industry specifications for a warranty-safe upgrade.

How it compares

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

Price $18.99
Cheaper than about 89% 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 $4.75 per GB
Cheaper than about 76% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number1U6D32R804 GB
Total capacity4 GB
Product colorBlack
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
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 do I install the 240-pin DDR3 DIMM and what step is often missed?

Align the notch on the module with the key in the slot, press down firmly until both side clips snap shut, then verify the system reports the full 4GB at 1600MHz in BIOS.

What maintenance or replacement will this 1.5V non-ECC UDIMM need later?

No scheduled maintenance is required; if errors appear, run a memory test and replace the module if it fails, otherwise it runs for the system's life.

What limit appears first when the CL11 2Rx8 module runs under sustained load?

The DDR3 1600 bandwidth ceiling of PC3-12800 is reached before thermal throttling, since the module has no heat spreader and operates at standard JEDEC voltage.

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