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Green printed circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM memory upgrade

SKU CH-YXZK-71KQ1

An 8 GB DDR4-2666 UDIMM module rated at CL19 and 1.2 V for desktop upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 8GB capacity expands desktop multitasking headroom
  • DDR4 2666 speed matches PC4-21300 bandwidth rating
  • CL19 latency at 1.2V keeps power draw low
  • 288-pin UDIMM form factor fits standard desktop slots
  • 1Rx8 single-rank layout simplifies motherboard compatibility

Capacity and fit

This 8GB DDR4 UDIMM runs at 2666MHz with CL19 latency and 1.2V operation. It is built as a 1Rx8 unbuffered non-ECC module on a 288-pin form factor for desktop motherboards. The part is validated for Hynix MTA8ATF1G64AZ-2G6 compatibility.

Thermals and power

The stick has no heat spreader and draws power at the standard DDR4 1.20V level. Without active cooling it relies on case airflow to stay within normal operating temperatures. Power consumption follows the DDR4 PC4-21300 specification for this density and speed.

Build integration

A single 288-pin slot is required and the low-profile design clears most CPU coolers. The module frees up remaining DIMM slots for future expansion. Buyers who need ECC error correction or registered buffering must select a different module type.

How it compares

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

Price $45.99
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 $5.75 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHynix Server/Workstaion Compatible Series Memory
Model nameHynix DDR4 2666 MHz Non-ECC Unbuffered UDIMM
Part numberMD21300-818K1
Total capacity8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHynix
In the box
Included items8 GB (1 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

How do I install the 288-pin DDR4 UDIMM and which step is often missed?

Align the notch on the module with the slot key, press down firmly until both side clips click shut, then verify the system recognises the full 8GB at 2666 MHz in BIOS.

What maintenance or replacement will this non-ECC unbuffered module need later?

No scheduled maintenance is required; if errors appear, run a memory test and replace the stick — there are no user-serviceable parts on the module.

What limit appears first during sustained workloads on this CL19 1.20 V kit?

The CAS latency of 19 cycles at 2666 MHz sets the timing ceiling before voltage or thermal limits become a factor.

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