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

A-Tech

A-Tech 16GB DDR4 2666MHz ECC UDIMM 2Rx8 HP 3TQ40AA 3TQ40AT 879527-091 Server RAM

SKU CH-DJ2E-VVAQP

16 GB DDR4 2666 MHz ECC unbuffered DIMM with CL19 latency and 1.2 V operation

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 16 GB DDR4 2666 MHz CL19 boosts server responsiveness
  • ECC UDIMM protects data integrity in critical workloads
  • 2Rx8 rank organisation maximises 16 GB density per slot
  • 20 V standard voltage keeps power draw low
  • 288-pin DIMM fits HP 3TQ40AA, 3TQ40AT, 879527-091 systems

Server ECC UDIMM upgrade

This 16GB DDR4 2666MHz module is built for servers and workstations that require error-correcting unbuffered memory. It delivers 1.20V standard voltage and CL19 latency for stable operation in compatible HP platforms. The single 288-pin DIMM uses a 2Rx8 organisation with major-brand chips.

ECC unbuffered requirement

The deciding specification is ECC UDIMM; systems that accept only registered or non-ECC DIMMs will not support this module. Verify that your motherboard and BIOS explicitly list ECC unbuffered DDR4 2666 support before ordering.

HP part-number match

The module replaces HP part numbers 3TQ40AA, 3TQ40AT and 879527-091, so it fits the qualified memory lists for those configurations. No extra cables, brackets or software are included in the package.

Points forts

  • 16 GB DDR4 2666 MHz CL19 boosts server responsiveness
  • ECC UDIMM protects data integrity in critical workloads
  • 2Rx8 rank organisation maximises 16 GB density per slot
  • 20 V standard voltage keeps power draw low
  • 288-pin DIMM fits HP 3TQ40AA, 3TQ40AT, 879527-091 systems

Caractéristiques

BrandA-Tech
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

What does the 2666MHz speed mean once the module is installed?

The module runs at 2666MHz DDR4, delivering PC4-21300 bandwidth; the system memory controller sets the final data rate.

How does the ECC UDIMM interface affect what the memory can do?

ECC UDIMM provides single-bit error correction on an unbuffered 288-pin DDR4 bus, so data integrity is checked without registered delay.

What physical slot and clearance does this 288-pin DIMM need?

It fits a standard 288-pin DDR4 DIMM socket and uses 1.2V; verify your board accepts unbuffered ECC modules before installing.

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