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Green PCB memory module with black chips and gold contacts

Patriot Memory

Patriot Signature 16GB DDR4 2666MHz CL19 desktop RAM

SKU CH-HQYC-WXJBC

16 GB DDR4 module running at 2666 MHz with CL19 latency and 1.20 V operation for straightforward desktop upgrades

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19-43
  • Voltage1.20V
  • ECCNo

Capacity 16GB

  • 4GB
  • 16GB

Struck-through versions exist but are not stocked here.

Speed DDR4 2666 (PC4 21300)

  • DDR4 2666 (PC4 21300)
  • DDR4 2400 (PC4 19200)

Struck-through versions exist but are not stocked here.

CAS Latency CL19

  • CL17
  • CL19

Struck-through versions exist but are not stocked here.

  • 16 GB capacity expands multitasking headroom for demanding applications
  • DDR4 2666 MHz speed raises data throughput for smoother system response
  • CL19 19-19-19-43 timings balance latency and stability at standard voltage
  • 20 V operation reduces power draw and heat in everyday workloads
  • 100 % tested unbuffered UDIMM ensures reliable plug-and-play upgrades

16GB DDR4 2666MHz module

This single Patriot Signature module provides 16GB of DDR4 memory at 2666MHz with CL19 latency. It is an unbuffered, non-ECC UDIMM built for mainstream desktop systems that need extra capacity for everyday multitasking.

Upgrade from lower-capacity or slower DDR4

The jump makes sense when your board has free 288-pin slots and the current kit is smaller than 16GB or runs below 2666MHz. Adding this module raises total capacity and lets the memory controller operate at the rated 2666MHz speed.

Check slot count and maximum supported speed

Verify that your motherboard accepts 288-pin DDR4 UDIMMs and confirm the highest memory frequency it supports without overclocking. The module runs at 1.20V standard voltage and requires no heat spreader clearance.

Highlights

  • 16 GB capacity expands multitasking headroom for demanding applications
  • DDR4 2666 MHz speed raises data throughput for smoother system response
  • CL19 19-19-19-43 timings balance latency and stability at standard voltage
  • 20 V operation reduces power draw and heat in everyday workloads
  • 100 % tested unbuffered UDIMM ensures reliable plug-and-play upgrades

Specifications

BrandPatriot
SeriesSignature Line
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19-43
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Heat SpreaderNo

Questions about this item

Will this 16GB DDR4 2666MHz CL19 module work in my motherboard?

It fits any desktop board with a 288-pin DDR4 slot that accepts unbuffered non-ECC UDIMMs at 1.20V.

Does the CL19 19-19-19-43 timing affect everyday performance?

CL19 is standard for 2666MHz DDR4; you will see normal responsiveness in office work, browsing and light gaming.

Is anything else needed to install this stick?

No extra parts — just an empty 288-pin DDR4 slot and a screwdriver to open the case.

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