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Green printed circuit board with black memory chips and gold edge connectors

SK hynix

SK hynix 4GB DDR4 2666 PC4-21300 1Rx16 desktop RAM

SKU CH-7D3J-3BCGF

4GB DDR4 desktop memory running at 2666 MT/s with PC4-21300 bandwidth

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • 4 GB capacity for everyday desktop tasks
  • DDR4 2666 speed for responsive performance
  • PC4-21300 bandwidth for smooth multitasking
  • 1Rx16 organisation for broad motherboard compatibility

SK hynix 4GB DDR4 2666 desktop module

This SK hynix module provides 4GB of DDR4 memory rated at 2666 MT/s with a PC4-21300 bandwidth rating. It uses a single-rank 1Rx16 organisation and is built for standard desktop DIMM slots. The kit is supplied in new condition.

Suits entry-level office builds and basic upgrades

This capacity works for light office tasks and simple web browsing on platforms that accept DDR4 2666 memory. Buyers who need more capacity for multitasking or content creation should consider higher-density modules. Systems that require a different memory generation cannot use this module.

How it compares

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

Price $31.99
Cheaper than about 77% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $8.00 per GB
Pricier than about 58% of the 3,251 comparable items (median $6.75 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Total capacity4 GB
Performance
Rated speedDDR4 2666 (PC4 21300)

Questions about this item

Should I pick the 4GB DDR4 2666 module or a higher-capacity kit?

This listing is a single 4GB DDR4 2666 stick. Add a second identical module to run dual-channel, or choose a larger kit if your board has only two slots.

What does the PC4-21300 rating tell me about real-world throughput?

PC4-21300 is the peak transfer rate designation for DDR4 2666. In a compatible desktop the module runs at 2666 MT/s, delivering the bandwidth that rating represents.

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