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Green rectangular DDR4 DIMM module with black chips

HP

HP 3TK85AT 4GB DDR4-2666 desktop RAM

SKU CH-YT7C-9FQCT

4GB DDR4-2666 desktop DIMM adds 4GB of system memory at 2666 MT/s

  • Capacity4GB
  • SpeedDDR4 2666 (PC4 21300)
  • 4 GB capacity for everyday desktop tasks
  • DDR4 2666 speed rated at PC4 21300
  • New HP module ready for installation
  • MPN 3TK85AT identifies the exact part

HP 3TK85AT 4GB DDR4-2666 DIMM

This HP 3TK85AT module provides 4GB of DDR4 memory rated at 2666 MT/s (PC4-21300). It is a standard unbuffered DIMM intended for desktop systems that accept DDR4 memory. Builders upgrading an office PC or assembling a basic workstation will find the capacity suitable for everyday productivity tasks.

Supplied as a single memory module

The package contains only the memory module itself with no additional cables, brackets or software utilities. Buyers who need a matched pair for dual-channel operation must purchase a second identical stick separately. Systems requiring more than 4GB total capacity will need additional modules or higher-density alternatives.

Highlights

  • 4 GB capacity for everyday desktop tasks
  • DDR4 2666 speed rated at PC4 21300
  • New HP module ready for installation
  • MPN 3TK85AT identifies the exact part

Specifications

Capacity4GB
SpeedDDR4 2666 (PC4 21300)

Questions about this item

Will the 4GB DDR4-2666 DIMM need replacement if I upgrade to a higher capacity later?

The module is a single 4GB stick; adding more memory means populating free slots, while replacing it would be necessary only if every slot is already filled.

What limit appears first during sustained heavy workloads with this DDR4-2666 kit?

The 4GB capacity will bottleneck multitasking and large datasets long before the 2666 MT/s speed ceiling becomes the limiting factor.

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