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Four green DDR4 UDIMM sticks with black chips no heat spreader

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2666 ECC UDIMM CL19 1.2V

SKU CH-PV1B-6YQ42

A 128GB kit of four 32GB DDR4 2666 ECC UDIMM modules at CL19 and 1.2V for compatible servers and NAS systems

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • 128 GB total capacity from four 32 GB modules
  • ECC UDIMM detects and corrects single-bit errors for data integrity
  • DDR4 2666 CL19 timing delivers responsive server performance
  • Low 1.20 V operation reduces power draw and heat
  • 288-pin unbuffered design fits compatible NAS and workstation boards

Capacity and Compatibility

This kit delivers 128GB of DDR4 ECC UDIMM memory across four 32GB modules. It is built for servers, workstations and compatible NAS units such as the ASUS LOCKERSTOR that accept unbuffered DDR4 DIMMs. The 288-pin form factor fits standard DDR4 slots. Buyers who need registered or load-reduced modules cannot use this kit.

Speed and Headroom

Rated at DDR4 2666 (PC4-21300) with CL19 latency and 1.20V operation, the modules handle typical virtualization, file-serving and database workloads within the JEDEC standard. The dual-rank 2Rx8 organization provides density for multi-threaded tasks. Workloads that demand higher frequencies or lower latencies will exceed the rated specification of this memory.

DDR4 Platform Limits

The DDR4 interface tops out at the 2666 MT/s speed grade supplied here; faster DDR4 data rates are not supported by these modules. ECC error correction operates only on platforms that enable the feature in the memory controller. Systems limited to non-ECC or registered memory will not accept this unbuffered UDIMM kit.

Highlights

  • 128 GB total capacity from four 32 GB modules
  • ECC UDIMM detects and corrects single-bit errors for data integrity
  • DDR4 2666 CL19 timing delivers responsive server performance
  • Low 1.20 V operation reduces power draw and heat
  • 288-pin unbuffered design fits compatible NAS and workstation boards

Specifications

BrandNEMIX RAM
SeriesASUS LOCKERSTOR NAS Memory
ModelASUS LOCKERSTOR NAS Memory
Part NumberME21300-328K4
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
FeaturesDDR4 ECC Unbuffered UDIMM Motherboard Compatible

Questions about this item

Will this 128GB DDR4 2666 CL19 kit run alongside my existing DDR4 2666 ECC UDIMM modules?

Yes — all four sticks are DDR4 2666 (PC4-21300) CL19 1.20V 2Rx8 ECC UDIMM, so they will operate at the same speed, voltage and timings as identical-spec modules you already have.

How can I verify the 128GB DDR4 2666 ECC kit is working correctly after installation?

Enter the BIOS or UEFI and confirm the full 128GB is detected at 2666 MHz with ECC enabled; then run the operating system's built-in memory test to check for corrected errors.

What comes in the box with the 128GB (4x32GB) DDR4 2666 ECC UDIMM kit, and is anything else required?

The package contains four 32GB 288-pin DDR4 ECC UDIMM modules; no heat spreaders or extra cables are included, and no additional parts are needed for installation in a compatible system.

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