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Green rectangular circuit board with gold edge connector and black memory chips

Kingston Technology Corp.

Kingston Technology Corp. KCP426SS8/8 8GB DDR4 2666 laptop RAM

SKU CH-8PS3-EWPSQ MPN KCP426SS8/8

8 GB DDR4 SO-DIMM running at 2666 MHz with CL19 timing and 1.2 V operation

  • Capacity8GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V
  • 8 GB capacity boosts multitasking headroom
  • DDR4 2666 speed delivers 21300 MB/s bandwidth
  • CL19 timing balances latency and stability
  • 20 V operation reduces power draw
  • 260-pin SO-DIMM fits listed Dell notebooks

Module identity and fit

This Kingston KCP426SS8/8 is an 8GB DDR4 260-pin SO-DIMM rated for 2666 MHz operation at 1.20V with CL19 latency. It is built for notebooks that accept standard DDR4 SO-DIMM modules and matches the PC4-21300 specification. The module is unbuffered, non-ECC and RoHS 2 compliant.

Sustained-load behaviour

Running at the rated 2666 MHz speed with 19-19-19 timings, the module maintains the JEDEC-standard 1.20V voltage during continuous workloads. Unbuffered, non-ECC DDR4 SO-DIMMs of this type deliver stable throughput for typical notebook tasks without the additional buffering or error correction found in server-grade memory.

Compatibility checklist

Verify that the notebook uses 260-pin DDR4 SO-DIMM slots and supports DDR4-2666 or PC4-21300 speeds at 1.20V. Confirm the system accepts non-ECC, unbuffered modules and has a free slot for a single 8GB stick. Check the vendor’s qualified-vendor list for this specific part number before ordering.

Highlights

  • 8 GB capacity boosts multitasking headroom
  • DDR4 2666 speed delivers 21300 MB/s bandwidth
  • CL19 timing balances latency and stability
  • 20 V operation reduces power draw
  • 260-pin SO-DIMM fits listed Dell notebooks

Specifications

BrandKingston
ModelKCP426SS8/8
Capacity8GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
Shipping weight0.23 kg
Package size102 × 51 × 25 mm

Questions about this item

Does the 1.20V DDR4 module run hot or draw much power during all-day use?

At 1.20V the module operates at standard DDR4 voltage, so power draw and heat stay low even under continuous load.

What must my notebook already have for this 260-pin SO-DIMM to work?

Your notebook needs a DDR4 SO-DIMM slot that accepts 260-pin modules; the board must support DDR4 memory.

Will this CL19 2666 MHz stick work alongside the original memory in my Dell G5 15 5587?

Yes, the module is validated for the G5 15 5587 and will run at the system’s supported speed when paired with existing DDR4 memory.

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