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Green 288-pin DDR4 RDIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR4 2133MHz ECC RDIMM 1Rx8 Server Memory

SKU CH-KA6R-2D1W3

4GB DDR4 2133MHz ECC registered server DIMM with CL15 latency and 1.2V operation

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption in critical workloads
  • Registered design with 1Rx8 organisation supports stable server operation
  • DDR4 2133 MHz speed at 1.2 V matches PC4-17000 specification
  • 288-pin DIMM form factor fits compatible IBM-Lenovo 46W0786 and 47J0250 systems
  • CL15 latency and major-brand chipset deliver reliable performance for workstations

Server memory for IBM-Lenovo systems

This 4GB DDR4 ECC RDIMM replaces IBM-Lenovo part numbers 46W0786 and 47J0250. It is built for servers and workstations that require registered, error-correcting memory. The module installs in a standard 288-pin DIMM slot and operates at the standard DDR4 voltage of 1.20V.

Registered ECC with 1Rx8 organisation

The single specification that determines fit is the registered ECC design with a 1Rx8 rank structure. Systems that require unbuffered non-ECC DIMMs or a different rank configuration will not accept this module. Compatibility must be verified against the platform's qualified vendor list before purchase.

4GB capacity for light workloads

A single 4GB module handles basic server tasks, virtualisation hosts with modest memory allocation, and legacy application servers. Workloads that demand large in-memory databases, heavy virtualisation density or high-performance computing will exceed this capacity and require higher-density DIMMs or additional populated slots.

How it compares

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

Price $18.99
Cheaper than about 95% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for IBM-Lenovo
Model name46W0786, 47J0250
Total capacity4 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Power
Rated voltage1.2 V

Questions about this item

What does DDR4 2133 PC4-17000 mean for actual server throughput?

The module runs at 2133 MT/s with a peak transfer rate of 17000 MB/s, delivering registered ECC bandwidth for stable server workloads

How does the registered ECC RDIMM interface affect system compatibility?

Registered ECC RDIMM adds a register buffer and error correction, requiring a server or workstation motherboard that supports registered DDR4 DIMMs

Will this 288-pin DIMM fit my IBM-Lenovo server memory slots?

Yes, the 288-pin DDR4 DIMM form factor matches the 46W0786 and 47J0250 part replacements for compatible IBM-Lenovo systems

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