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Two green server memory modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 256GB (2 x 128GB) DDR4 2933MHz PC4-23400 4Rx4 ECC LRDIMM server RAM

SKU CH-2QQW-0WJFN

256 GB DDR4 server kit with two 128 GB ECC LRDIMMs at 2933 MHz, CL21, 1.2 V, 288-pin, 4Rx4

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 256 GB total capacity from two 128 GB modules for large server workloads
  • DDR4 2933 MHz PC4-23400 speed rating supports high-throughput applications
  • Load Reduced DIMM design lowers electrical load on the memory bus
  • ECC protection detects and corrects single-bit errors for data integrity
  • 2 V operating voltage reduces power draw per module

Server DDR4 256GB Kit

This 256GB kit contains two 128GB DDR4 LRDIMM modules rated at 2933MHz PC4-23400. It is built for enterprise servers that require registered ECC memory with a load-reduced design. The modules are not compatible with standard desktop or workstation motherboards that accept only unbuffered DIMMs.

Load-Reduced Interface Limits

Load-reduced DIMMs reduce electrical load on the memory bus, allowing higher per-slot capacities than standard RDIMMs. The DDR4 2933MHz interface caps transfer rates at 23400 MB/s per module, and the 288-pin form factor fits only DDR4 server slots. Systems must support 4Rx4 organisation and ECC to use this kit.

4Rx4 ECC LRDIMM Decides Fit

The 4Rx4 rank configuration and ECC LRDIMM format are the single specifications that determine whether this memory works in a given server. Motherboards that do not explicitly support 4Rx4 load-reduced modules will not post with these installed. Verify the platform qualified-vendor list before purchase.

How it compares

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

Price $1,649.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
CAS latency 21
Lower than about 90% of the 439 comparable items (median 40).
Price per GB $6.45 per GB
Cheaper than about 59% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Model namePart#: ML23400-744K2-SM-SYS-5019P-M
Part numberPart#: ML23400-744K2-SM-SYS-5019P-M
Total capacity256 GB (2 × 128 GB)
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency21
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

Should I choose the 256GB kit with two 128GB modules or look for a different capacity?

This kit provides 256GB total using two 128GB LRDIMMs. Each module is a 4Rx4 load-reduced design running at 1.2V, so the choice depends on how many DIMM slots your server has free and the maximum capacity per slot its memory controller supports.

What does the 2933MHz speed mean once the memory is installed in a server?

The modules are rated for DDR4 2933 (PC4-23400) with CAS latency 21. Actual operating speed will be set by the server's memory controller and the number of DIMMs populated per channel; it may run at 2933MHz or step down to a lower supported JEDEC frequency.

How does the 288-pin LRDIMM interface affect compatibility and maximum capacity?

The 288-pin DDR4 LRDIMM form factor fits server motherboards designed for load-reduced memory. The 4Rx4 organisation and ECC support allow higher densities per channel than standard RDIMMs, but the platform must explicitly support LRDIMM technology.

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