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Single green 288-pin DDR5 RDIMM module with black heat spreader and gold contacts

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM server RAM

SKU CH-NEKQ-3R3YC

A 128GB DDR5 registered ECC DIMM running at 6400MHz with 1.1V operation and CL52 latency for server workloads

  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 128 GB single-module capacity simplifies high-density server upgrades
  • DDR5 6400 MHz speed delivers high bandwidth for demanding workloads
  • ECC registered design detects and corrects data errors automatically
  • 1 V operation reduces power draw in dense configurations
  • 2Rx4 organisation optimises signal integrity on 288-pin RDIMM

Server DDR5 module for registered ECC platforms

This 128GB NEMIX RAM module targets servers and workstations that require registered ECC memory. It operates at DDR5 6400MHz with a PC5-51200 data rate and runs at 1.1V. The module is not compatible with standard desktop or laptop platforms that use unbuffered memory.

Registered 2Rx4 organisation with 52 CAS latency

The single decisive specification is the registered 2Rx4 layout combined with ECC, which only functions in platforms designed for registered DIMMs. CAS latency is rated at 52 cycles at the 6400MHz speed grade. Buyers must verify motherboard support for registered DDR5 before purchase.

128GB capacity in a single 288-pin DIMM

One module delivers 128GB, allowing high-density configurations within limited slot counts. Headroom scales with the number of populated channels on the host platform. Systems lacking registered DDR5 support cannot use this module at all.

How it compares

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

Price $4,230.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
CAS latency 52
Higher than about 90% of the 439 comparable items (median 40).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Model namePart#: MR51200-724K1-SM-AS-1015CS-TNR
Part numberPart#: MR51200-724K1-SM-AS-1015CS-TNR
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.1 V

Questions about this item

What does the 6400MHz speed mean for actual server performance?

The module runs at DDR5 6400 (PC5-51200) with a CAS latency of 52, delivering the rated throughput when installed in a compatible DDR5 server platform.

How does the 288-pin RDIMM form factor and registered design affect compatibility?

This is a 288-pin DDR5 RDIMM; the registered buffer and ECC require a server motherboard that supports registered DDR5 memory.

What physical slot and voltage does the 128GB module need?

It fits a standard DDR5 288-pin DIMM slot and operates at 1.1V.

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