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Two green 288-pin DDR4 UDIMM modules with black chips

RIMLANCE

RIMLANCE RUD21300D8C2K64 64GB (2×32GB) DDR4 2666 CL19 desktop RAM

SKU CH-MSWQ-5QDF3

A 64 GB dual-channel kit of two 32 GB DDR4 UDIMMs running at 2666 MHz with CL19 latency

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Product type288-Pin PC RAM
  • 64 GB total capacity for heavy multitasking and large datasets
  • Two 32 GB modules enable dual-channel throughput on desktop boards
  • DDR4 2666 speed rated at PC4-21300 for responsive performance
  • CL19 latency at 1.2 V balances speed with low power draw
  • Standard 288-pin unbuffered DIMM fits any DDR4 desktop slot

Capacity and kit layout

This kit provides 64GB of desktop memory using two 32GB modules. It is aimed at users who need a large amount of RAM for multitasking or memory-heavy applications on a DDR4 platform.

Speed and latency

The modules run at 2666 MT/s with a CAS latency of 19 and operate at 1.2 V. This specification determines whether the memory matches the motherboard's supported data rate and timing requirements.

Installation notes

The 288-pin UDIMM form factor fits standard DDR4 desktop slots and the unbuffered design requires no special configuration. A common issue is that some boards only support 32GB per slot with specific BIOS versions, so the full 64GB may not be recognised without an update.

How it compares

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

Price $225.99
Pricier than about 71% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $3.53 per GB
Cheaper than about 88% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameRIMLANCE
Model nameRUD21300D8C2K64
Total capacity64 GB (2 × 32 GB)
Product type288-Pin PC RAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered

Questions about this item

Will these two 32GB modules fit a standard desktop motherboard?

Yes, each module uses the 288-pin UDIMM form factor designed for DDR4 desktop slots.

What voltage do the modules run at and is it standard for DDR4?

They operate at 1.2 V, the standard voltage for DDR4 memory.

Does the kit support dual-channel operation on a typical consumer board?

The 2RX8 unbuffered design allows dual-channel mode when both sticks are installed in matched slots.

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