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Green 288-pin DDR4 DIMM with black chips and silver edge contacts

A-Tech

A-Tech 16GB DDR4 2133MHz CL15 ECC UDIMM 2Rx8 Server RAM

SKU CH-NE59-KPNJ4

16 GB DDR4 2133 MHz ECC UDIMM module with CL15 latency and 2Rx8 organisation for server upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 16 GB DDR4 capacity handles heavier server workloads
  • 2133 MHz CL15 timing delivers responsive data throughput
  • ECC UDIMM design protects data integrity in critical applications
  • 2 V standard voltage keeps power draw efficient
  • 288-pin DIMM form factor fits compatible server boards

Server-grade DDR4 ECC UDIMM

This A-Tech module delivers 16GB of DDR4 2133MHz memory with CL15 latency and ECC error correction. It runs at the standard 1.20V and uses a 2Rx8 unbuffered layout on a 288-pin DIMM. The kit targets administrators upgrading or repairing server and workstation platforms that require registered data integrity.

Direct Kingston KVR21E15D8K2 replacement

The module is specified as a compatible equivalent for Kingston part numbers KVR21E15D8K2/32 and KVR21E15D8K2/32I. It matches the original speed, voltage, rank and ECC unbuffered design so the system recognises it without configuration changes. The upgrade is worthwhile when capacity limits are reached or when a failed stick must be swapped for an identical specification.

Simple DIMM slot installation

Insert the 288-pin module into a vacant DDR4 UDIMM slot until the retention clips engage; no tools or firmware updates are required. The most common issue is mixing this unbuffered ECC stick with registered or non-ECC memory, which prevents the system from posting. Verifying the platform's qualified vendor list before purchase avoids that mismatch.

How it compares

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

Price $121.99
Cheaper than about 61% 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 $7.62 per GB
Typical for this category: the median of 6,064 items is $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 typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Will this 288-pin DDR4 UDIMM fit my server's memory slots?

Yes, the module uses the standard 288-pin DDR4 UDIMM form factor designed for compatible server and workstation motherboards.

What is the correct way to seat the module so the ECC function works?

Align the notch with the slot key, press firmly until both retention clips click, and ensure the 1.20V power requirement matches your system.

When should I consider replacing this 16GB ECC module?

Replace it if memory diagnostics report uncorrectable ECC errors or if you upgrade to a platform requiring a different DDR generation.

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