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Green rectangular SO-DIMM stick with silver aluminium heat shield

Patriot Memory

Patriot Memory PVS48G266C8S 8GB DDR4 2666 laptop RAM

SKU CH-XJZM-7E62X MPN PVS48G266C8S

8GB DDR4 2666 SO-DIMM laptop memory with CL18 timing and 1.20V operation

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL18
  • Memory timings18-18-18-43
  • Rated voltage1.2 V
  • Product type260-Pin DDR4 SO-DIMM

Capacity 8GB

Speed DDR4 2666 (PC4 21300)

CAS Latency CL18

  • 8GB capacity boosts multitasking headroom on compatible laptops
  • DDR4 2666 speed delivers high data throughput for demanding workloads
  • CL18 18-18-18-43 timings balance low latency with stable operation
  • 20V voltage reduces power draw and heat in portable systems
  • 260-pin SO-DIMM form factor fits standard DDR4 laptop slots

8GB DDR4 SO-DIMM for laptops

This Patriot Viper Steel module adds 8GB of DDR4 2666 memory to notebooks and small form-factor PCs. It uses the standard 260-pin SO-DIMM form factor and runs at 1.20V. The kit suits users who want a straightforward capacity increase for everyday multitasking or light gaming.

Low voltage and aluminium heat shield

Operating at 1.20V keeps power draw modest and thermals manageable inside thin chassis. A custom aluminium heat shield spreads heat across the module surface without adding bulk. The design targets quiet, fanless or low-airflow environments where every watt counts.

Upgrade from 4GB or slower DDR4

Replacing a single 4GB stick or slower DDR4 SO-DIMM with this 8GB CL18 module doubles capacity and raises bandwidth to PC4 21300. The jump is worth it when the system has a free slot or when both slots can be populated for dual-channel operation. Buyers who need ECC error correction or speeds above 2666 MT/s should look elsewhere.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 83% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $2.87 per GB
Cheaper than about 91% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand namePatriot
Product lineViper Steel
Model namePVS48G266C8S
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL18
Memory timings18-18-18-43
ECC supportNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.03 kg
Package size131 × 98 × 6 mm

Other versions of this model

3 more in the same range

Questions about this item

How do I install the 260-pin SO-DIMM module and what is the common mistake?

Align the notch on the module with the slot key, insert at a slight angle, then press down firmly until both side clips click into place. The frequent error is stopping before the clips fully engage, leaving the stick partially seated.

What maintenance or replacement will this DDR4 memory need over time?

No routine maintenance is required for the module itself. Keep the laptop vents clear so the aluminum heat shield can dissipate heat effectively. Replacement is only necessary if you need more capacity or a faster speed grade.

What limit appears first during sustained heavy workloads?

The 2666 MT/s data rate and CL18 latency ceiling will be reached before thermal throttling becomes an issue, since the Viper Steel heat shield is designed to handle the 1.20V operating voltage under continuous load.

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