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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 16GB DDR4 2133MHz ECC UDIMM CL15 2Rx8 1.20V 288-Pin Server Memory

SKU CH-CQPJ-ET17Q

16 GB DDR4 2133 MHz ECC unbuffered DIMM with CL15 latency for server and workstation upgrades

  • Capacity16GB
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection safeguards data integrity in server workloads
  • 16GB capacity expands memory for demanding applications
  • DDR4 2133MHz speed delivers PC4-17000 bandwidth
  • CL15 latency at 1.20V balances performance and efficiency
  • 2Rx8 288-pin UDIMM fits compatible server motherboards

16GB DDR4 ECC UDIMM for servers

This A-Tech module delivers 16GB of DDR4 2133MHz memory with ECC error correction and CL15 latency. It operates at the standard 1.20V and uses a 2Rx8 unbuffered design. The 288-pin DIMM is built as a compatible replacement for Kingston KTD-PE421E/16G and KVR21E15D8/16I modules. It targets administrators upgrading or repairing server and workstation platforms that require ECC unbuffered memory.

Replaces Kingston KTD-PE421E/16G and KVR21E15D8/16I

The module matches the 16GB capacity, 2133MHz speed, CL15 timing and 1.20V voltage of those Kingston parts. It serves as a direct substitute when original modules are discontinued or when expanding capacity within the same specification. The jump is worthwhile when your system reports correctable memory errors or when workloads exceed the current installed memory limit.

Simple DIMM installation with compatibility checks

Installation follows standard UDIMM procedure: power down, open the chassis, align the 288-pin edge connector with the slot, and press until the retention clips engage. What usually goes wrong is a mismatch between registered and unbuffered memory types or exceeding the platform's maximum supported speed per channel. Verify that your motherboard accepts unbuffered ECC DDR4 before ordering.

Puntos fuertes

  • ECC protection safeguards data integrity in server workloads
  • 16GB capacity expands memory for demanding applications
  • DDR4 2133MHz speed delivers PC4-17000 bandwidth
  • CL15 latency at 1.20V balances performance and efficiency
  • 2Rx8 288-pin UDIMM fits compatible server motherboards

Especificaciones

BrandA-Tech
SeriesCompatible Replacement for Kingston
ModelKTD-PE421E/16G, KVR21E15D8/16I
Capacity16GB
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
FeaturesKTD-PE421E/16G, KVR21E15D8/16I

Preguntas sobre este artículo

Will the 288-pin DDR4 UDIMM fit my server motherboard slots?

This module uses the standard 288-pin DDR4 UDIMM form factor and 1.20V voltage, so it fits any server or workstation board that accepts unbuffered ECC DDR4 DIMMs.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press straight down until both side clips click, then verify the system reports 2133 MHz and ECC active in BIOS.

When should I replace this 16 GB ECC stick?

Replace it if memory diagnostics report correctable errors rising over time, or when you upgrade to a platform that requires faster than 2133 MHz or registered DIMMs.

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