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

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 CL19 2Rx8 1.2V UDIMM HPE 879507-B21 memory upgrade

SKU CH-DMYV-2660X

A 16 GB DDR4 2666 MHz UDIMM module with CL19 latency and 1.2 V operation, validated for HPE 879507-B21 systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16 GB DDR4 2666 MHz boosts system responsiveness
  • CL19 latency at 1.20 V keeps power draw low
  • 2Rx8 288-pin UDIMM fits HPE 879507-B21 slots
  • Major OEM Samsung, Micron, Hynix chips ensure reliability
  • Non-ECC unbuffered design simplifies desktop installation

HPE-compatible DDR4 UDIMM

This 16 GB DDR4 2666 CL19 module is built for HPE servers and workstations that accept non-ECC unbuffered UDIMMs. It targets IT professionals and system builders who need a direct drop-in part for the HPE 879507-B21 slot.

Single-rank 2Rx8 layout with major-brand chips

The stick uses Samsung Micron or Hynix ICs in a 2Rx8 configuration running at 1.20 V. No heat spreader is fitted, so the low-profile 288-pin PCB fits tight chassis without clearance issues and installs in minutes.

Verify DDR4 UDIMM slots and non-ECC support

Check that your HPE platform lists the 879507-B21 part number and accepts 288-pin non-ECC unbuffered memory at 2666 MT/s. Systems requiring registered ECC or DDR5 will not work with this module.

How it compares

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

Price $83.99
Cheaper than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR4 2666 MHz Non-ECC Unbuffered UDIMM
Part numberMD21300-628K1
Total capacity16 GB
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHPE
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

What DDR4 speed and CAS latency does this 16 GB module run at?

The module operates at 2666 MT/s with CL19 timing and a 1.2 V supply.

What physical slot and pin count does this UDIMM require?

It fits a standard 288-pin DDR4 UDIMM slot on the motherboard.

How is the module installed and what step is often missed?

Align the notch with the slot key, press down until both retention clips click, then verify the capacity appears in BIOS.

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