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Green circuit board with black memory chips and gold edge contacts

OWC

OWC 2U6D41R808GB 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM for HP Pro 300 G6 A 300 G3 A G2 A G3

SKU CH-FDRJ-MTJDT

8GB DDR4 2666MHz CL19 UDIMM for HP Pro 300 G6, A 300 G3, A G2 and A G3 desktops

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8GB DDR4 boosts multitasking on HP Pro 300 G6, A 300 G3, A G2, A G3
  • 2666MHz CL19 speed delivers responsive everyday computing performance
  • 2V low-voltage operation reduces system power draw
  • 288-pin UDIMM form factor enables straightforward DIY installation
  • JEDEC and RoHS compliant for warranty-safe upgrade confidence

8GB DDR4 2666MHz UDIMM for HP Pro 300

This OWC module adds 8GB of DDR4 memory to compatible HP Pro 300 G6, A 300 G3, A G2 and A G3 desktops. It runs at 2666MHz with CL19 latency at 1.2V. The 288-pin unbuffered non-ECC design matches the JEDEC PC4-21300 standard for a warranty-safe upgrade. ||

Sustained 2666MHz operation without heat spreader

The module maintains its rated 2666MHz speed under continuous load using standard JEDEC voltage. Without a heat spreader it relies on case airflow, so sustained throughput stays stable in adequately ventilated chassis. Backward compatibility with 2133MHz and 2400MHz systems means it will clock down automatically if the platform requires it. ||

Tool-free DIMM slot installation

Installation is a simple DIY step: power off, open the case, align the notch on the 288-pin edge connector and press until the retention clips click. The single-rank 1Rx8 organisation avoids density conflicts on these HP boards. The only common issue is forgetting to seat both ends evenly, which leaves the module partially inserted and unrecognised by the BIOS.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $43.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2U6D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Desktop Pro 300 G6
HP Desktop Pro A 300 G3
HP Desktop Pro A G2
HP Desktop Pro A G3

Other versions of this model

5 more in the same range

Questions about this item

How much heat and power does the 1.2V DDR4 2666MHz module draw during all-day use?

The module runs at the standard JEDEC 1.2V, so power draw and heat stay low during continuous operation; no heat spreader is fitted.

What must the HP desktop already have for this 288-pin UDIMM to work?

The system needs a free DDR4 UDIMM slot and a memory controller that supports 2666MHz (PC4-21300) non-ECC unbuffered memory.

Will this CL19 2666MHz stick run with older 2133MHz or 2400MHz modules I keep?

Yes — the spec lists backward compatibility with 2133MHz and 2400MHz, so the new module will down-clock to match the slower sticks.

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