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Two matte black low profile DDR5 modules side by side

G.SKILL

G.SKILL F5-6400J3239G16GX2-RS5K 32GB DDR5 desktop RAM

SKU CH-MB5Q-ZDZGA MPN F5-6400J3239G16GX2-RS5K

A 32 GB dual-channel DDR5 kit at 6400 MT/s with CL32 timing, 1.40 V operation and a 33 mm low-profile heatspreader for compact builds

  • Capacity32GB (2 x 16GB)
  • Type288-Pin PC RAM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL32
  • Timing32-39-39-102
  • Voltage1.40V

Capacity 32GB (2 x 16GB)

Speed DDR5 6400 (PC5 51200)

CAS Latency|Color CL32|Black

  • DDR5 6400 speed enables faster data throughput for demanding workloads
  • CL32 latency with 32-39-39-102 timings delivers responsive performance in games and apps
  • 33 mm low-profile height fits compact builds and clears large CPU coolers
  • Intel XMP 3.0 profile applies rated speed and timings with a single BIOS selection
  • Hand-screened ICs validated under rigorous testing ensure stable operation at 1.40V

Ripjaws S5 DDR5 6400 Kit

This 32 GB kit contains two 16 GB DDR5 modules rated at 6400 MT/s with CL32 timings. Hand-screened ICs and a 1.40 V profile target enthusiasts who want high-speed memory for Intel 500 and 600 series platforms. Intel XMP 3.0 support lets the kit reach rated speed with a single BIOS selection.

Low-Profile Thermal Design

The matte black aluminum heat spreader measures 33 mm tall, clearing most large CPU coolers and compact chassis. Passive cooling keeps the modules stable at 1.40 V without adding fan noise or extra power draw beyond the rated voltage. The dual-channel configuration distributes load evenly across both sticks.

CL32 32-39-39-102 Timing

The primary latency of CL32 and the full 32-39-39-102 timing set define the kit's responsiveness in latency-sensitive workloads. Builders should verify that their motherboard and CPU memory controller can sustain DDR5 6400 at these timings before purchase.

Highlights

  • DDR5 6400 speed enables faster data throughput for demanding workloads
  • CL32 latency with 32-39-39-102 timings delivers responsive performance in games and apps
  • 33 mm low-profile height fits compact builds and clears large CPU coolers
  • Intel XMP 3.0 profile applies rated speed and timings with a single BIOS selection
  • Hand-screened ICs validated under rigorous testing ensure stable operation at 1.40V

Specifications

BrandG.SKILL
SeriesRipjaws S5 Series
ModelF5-6400J3239G16GX2-RS5K
Capacity32GB (2 x 16GB)
Type288-Pin PC RAM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL32
Timing32-39-39-102
Voltage1.40V
Multi-channel KitDual Channel Kit
BIOS/Performance ProfileIntel XMP 3.0
ColorBlack
Heat SpreaderYes
Features"Performance DDR5 memory designed for DIY and PC enthusiasts.
Featuring a 33mm Low-profile module height design
Intel XMP 3.0 Support.
The memory kit will boot at the SPD speed when BIOS settings are at default.
For best results, please use memory modules from the same memory kit only. Please do not install memory modules from different kits, as it may result in system stability issues.
Enable XMP profile in the BIOS to reach up to the rated XMP overclock speed of the memory kit.
Reaching the rated XMP overclock speed and system stability depends on the capability of the motherboard
Recommend UseHigh Performance or Gaming Memory / Intel 500 Series / Intel 600 Series / Intel B660 / Intel Compatible / Intel Z590 / Intel Z690
Shipping weight0.12 kg
Package size218 × 142 × 13 mm

Other versions of this model

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Questions about this item

How do I install the 288-pin DDR5 modules and what step is often missed?

Insert each 16GB stick into the motherboard's DDR5 slots until the retention clips click; the step many miss is enabling the Intel XMP 3.0 profile in BIOS so the kit runs at its rated 6400 speed instead of the default SPD speed.

What maintenance or replacement will the Ripjaws S5 kit need over time?

The aluminium heatspreader requires only occasional dust removal with compressed air; the memory ICs themselves have no serviceable parts, so replacement is only needed if a module fails or you decide to upgrade capacity later.

What limit appears first during sustained heavy workloads on this DDR5 6400 memory?

The 1.40V operating voltage and CL32-39-39-102 timings mean thermal throttling or stability limits tied to the memory controller and cooling airflow will surface before the modules hit any rated ceiling.

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