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Two black DDR5 DIMMs with RGB light bars

Kingston Technology Corp.

Kingston Technology Corp. KF556C40BBAK2-64 64GB (2×32GB) DDR5 5600 CL40 desktop RAM

SKU CH-SX07-SAR2D MPN KF556C40BBAK2-64

64 GB dual-channel DDR5 kit running at 5600 MT/s with CL40 timing, 1.25 V operation and RGB lighting

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL40
  • Memory timings40-40-40
  • Rated voltage1.25 V
  • Kit configurationDual Channel Kit
  • 64 GB total capacity from two 32 GB modules
  • DDR5 5600 speed rated at PC5 44800
  • CL40 CAS latency with 40-40-40 timings
  • 25 V operating voltage for efficient power draw
  • RGB lighting with Intel XMP 3.0 profile support

Capacity and kit layout

This is a 64 GB DDR5 kit built from two 32 GB modules. It targets desktop builders who need high capacity for content creation, heavy multitasking or gaming rigs that benefit from dual-channel bandwidth.

Speed and latency profile

The modules run at DDR5 5600 with a CL40 40-40-40 timing at 1.25 V. That single data point — 5600 MT/s at CL40 — decides whether the kit matches the memory controller limits of your platform and the performance envelope you are planning.

RGB lighting and XMP 3.0

On-board RGB LEDs add per-module illumination controllable through motherboard software. The kit also includes an Intel XMP 3.0 profile so the rated 5600 MT/s speed and timings can be loaded with one BIOS selection instead of manual entry.

How it compares

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

Price $849.99
Pricier than about 90% 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 $13.28 per GB
Pricier than about 81% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameKingston
Product lineFURY Beast
Model nameKF556C40BBAK2-64
Total capacity64 GB (2 × 32 GB)
Product type288-Pin PC RAM
Product colorBlack
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL40
Memory timings40-40-40
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0
Power
Rated voltage1.25 V
Size & build
Shipping weight0.23 kg
Package size178 × 51 × 13 mm
Compatibility
Recommended forAMD & Intel Compatible / AMD 500 Series / AMD B550 / AMD Ryzen Compatible / AMD X570 / High Performance or Gaming Memory / Intel 500 Series / Intel 600 Series / Intel B660 / Intel Compatible / Intel Z490 / Intel Z590 / Intel Z690
More details
LED lightingRGB

Questions about this item

Will this kit fit a standard desktop DDR5 motherboard slot?

Yes, each module uses the 288-pin DIMM form factor required for desktop DDR5 memory.

What voltage does the XMP 3.0 profile set for 5600 MHz operation?

The XMP 3.0 profile configures the modules to run at 1.25 V.

Does the RGB lighting require a separate controller or motherboard software?

The modules include onboard RGB LEDs that are controlled through motherboard RGB software.

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