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Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 16GB DDR4 2133 ECC RDIMM 2Rx4 for IBM-Lenovo 95Y4820 95Y4823 server RAM

SKU CH-7FK2-KPY01

A 16 GB DDR4 2133 ECC registered DIMM with 2Rx4 organisation for compatible IBM-Lenovo servers

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16 GB capacity expands server memory headroom for larger workloads
  • DDR4 2133 MHz speed delivers PC4-17000 bandwidth for responsive data access
  • ECC RDIMM registered design corrects single-bit errors to protect data integrity
  • 2Rx4 dual-rank organisation increases memory density per DIMM slot
  • 2 V DDR4 standard voltage reduces power draw compared to previous DDR generations

16GB DDR4 2133 ECC RDIMM for IBM-Lenovo

This 16GB DDR4 2133 ECC RDIMM module replaces IBM-Lenovo part numbers 95Y4820 and 95Y4823. It is built for server and workstation systems that require registered memory with error correction. The single 288-pin DIMM runs at 1.2V with a CAS latency of 15.

Installation requires matching registered DIMM slots

The module fits standard 288-pin DDR4 DIMM sockets. Because it is a registered ECC RDIMM, the platform must support registered memory and ECC; consumer desktop boards that accept only unbuffered non-ECC modules will not work. Verify the system memory specifications before purchase to avoid a mismatch.

Sustained workloads benefit from error correction

Under continuous load the ECC function detects and corrects single-bit errors, helping maintain data integrity in long-running server tasks. The 2Rx4 organisation and major-brand chips deliver stable throughput at the rated 2133 MT/s speed without the voltage increase that higher-frequency modules demand.

How it compares

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

Price $53.99
Cheaper than about 83% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $3.37 per GB
Cheaper than about 86% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

How do I verify the 16GB DDR4 2133 ECC RDIMM is recognised at full speed after installation?

Check the BIOS or UEFI memory information screen to confirm the module shows 16GB at 2133MHz with ECC and registered status, then run a memory diagnostic to validate stability.

What comes with the 16GB DDR4 2133 ECC RDIMM and what must be sourced separately?

The package contains one 16GB DDR4 2133 PC4-17000 ECC RDIMM 2Rx4 288-pin module; no cables, brackets or additional DIMMs are included.

Which capacity and rank should I choose between the 16GB 2Rx4 ECC RDIMM and other listed versions?

Select this 16GB 2Rx4 ECC RDIMM when your IBM-Lenovo 95Y4820 or 95Y4823 server requires a single registered DDR4 2133 module at 1.2V with major-brand chips.

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