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Green circuit board with black memory chips and gold edge connector

AddOn

AddOn AA2666D4SR8N/8G 8GB DDR4 2666 CL17 1.2V desktop RAM

SKU CH-7NTR-TYC4E MPN AA2666D4SR8N/8G

8GB DDR4 2666 module with CL17 latency and 1.2V operation for desktop upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • ECC supportNon-ECC
  • Buffer typeUnbuffered
  • 8GB capacity supports everyday multitasking
  • DDR4 2666 speed delivers responsive system performance
  • CL17 latency provides efficient data access
  • 2V operation reduces power consumption
  • Non-ECC unbuffered design fits standard desktop boards

AddOn 8GB DDR4 2666 Desktop Memory

This AddOn module provides 8GB of DDR4 memory rated at 2666 MT/s with a CAS latency of 17. It operates at the standard JEDEC voltage of 1.20V and uses an unbuffered, non-ECC UDIMM form factor. The single-rank x8 organisation complies with PC4-21300 specifications for mainstream desktop platforms.

Suits standard desktop upgrades needing JEDEC DDR4

Builders repairing or expanding a system that accepts DDR4 2666 UDIMMs will find this module a direct fit. It is not intended for workloads requiring error-correcting code memory or registered modules. Buyers who need higher capacities per slot, lower latencies, or ECC protection should look at alternative configurations.

Single-rank x8 organisation at CL17

The module uses a single-rank x8 DRAM arrangement running at CL17 latency. This layout influences how the memory controller populates channels and can affect maximum achievable speeds on some motherboards. Verify that your platform supports single-rank UDIMMs at this density before purchasing.

How it compares

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

Price $33.99
Cheaper than about 76% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $4.25 per GB
Cheaper than about 82% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameAddOn
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL17
ECC supportNon-ECC
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Size & build
Shipping weight0.23 kg
Package size178 × 51 × 13 mm

Questions about this item

Does the module ship as a single 8 GB stick or do I need to buy anything else to install it?

The package contains one 8 GB DDR4 UDIMM rated at 2666 MT/s with CL17 timing and 1.20 V operation; no extra brackets, cables or cooling are required.

I only see one 8 GB version listed — how do I decide if this capacity is right for my build?

Choose this 8 GB module when you need a single non-ECC unbuffered stick running at 2666 MT/s CL17 to fill one slot or to add 8 GB to an existing DDR4 system.

What does the 2666 MT/s rating actually deliver once the stick is seated in my motherboard?

The module runs at the JEDEC-standard 2666 MT/s data rate with CL17 latency at 1.20 V, giving the bandwidth and timing defined by the PC4-21300 specification.

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