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Two black DDR5 modules with aluminium heatspreaders and RGB lighting

G.SKILL

G.SKILL F5-6400J3644F64GX2-TZ5RK 128GB DDR5 6400 CL36 desktop RAM

SKU CH-BG4Y-RNQ68 MPN F5-6400J3644F64GX2-TZ5RK

128GB dual-channel DDR5 kit running at 6400 MT/s with CL36 timings and customizable RGB lighting

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • CAS latencyCL36
  • Memory timings36-44-44-102
  • Rated voltage1.35 V
  • Kit configurationDual Channel Kit
  • High capacity 128GB kit for demanding workloads
  • DDR5 6400 speed with CL36 latency for responsive performance
  • Intel XMP 3.0 profile enables one-click overclocking
  • Aluminium heatspreader keeps modules cool under load
  • Customizable RGB lighting matches any build aesthetic

128GB DDR5 6400 dual-channel kit

This Trident Z5 RGB kit delivers 128GB of DDR5 memory across two 64GB modules. It runs at 6400 MT/s with CL36 timings of 36-44-44-102 at 1.35V. Intel XMP 3.0 profiles simplify configuration on compatible platforms. The aluminium heatspreader and customizable RGB lighting complete the package.

High-capacity builds on Intel 600 700 800 series

The kit targets workstations and enthusiast systems that need 128GB for memory-intensive workloads or heavy multitasking. It is validated for Intel 600 700 800 series chipsets including Z690 Z790 Z890 B660 B670 B760. Builders requiring lower capacity or AMD EXPO support should consider alternative kits.

Two 64GB modules at 1.35V

The decisive specification is the 64GB per module density at 1.35V. Many consumer motherboards only support high densities at elevated voltages or with qualified vendor lists. Verify the board QVL for 64GB single-rank or dual-rank operation before purchase.

How it compares

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

Price $2,470.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 93% of the 3,251 comparable items (median 16 GB).
Price per GB $19.30 per GB
Pricier than about 90% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineTrident Z5 Series
Model nameF5-6400J3644F64GX2-TZ5RK
Total capacity128 GB (2 × 64 GB)
Product type288-Pin PC RAM
Product colorBlack
Performance
Rated speedDDR5 6400 (PC5 51200)
Memory
CAS latencyCL36
Memory timings36-44-44-102
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0
Heat spreaderYes
Power
Rated voltage1.35 V
Size & build
Shipping weight0.20 kg
Package size165 × 140 × 13 mm
Compatibility
Recommended forHigh Performance or Gaming Memory / Intel 600 Series / Intel 700 Series / Intel 800 Series / Intel B660 / Intel B670 / Intel B760 / Intel Compatible / Intel Z690 / Intel Z790 / Intel Z890
More details
LED lightingRGB

Questions about this item

Will the 288-pin DDR5 modules with aluminum heatspreaders fit under a large CPU air cooler?

The Trident Z5 RGB modules use a streamlined aluminum heatspreader design. Clearance depends on the specific cooler; check the cooler manufacturer's RAM clearance specification against the module height.

How do I enable the rated DDR5 6400 CL36 speeds and 36-44-44-102 timings on my Intel Z790 motherboard?

Enter the BIOS and enable the Intel XMP 3.0 profile for this kit. The common mistake is leaving the memory at default JEDEC speeds instead of activating the XMP profile.

Does the customizable RGB lighting on these 64GB modules require a separate controller or cable to function?

The RGB lighting is powered through the 288-pin DIMM slot and controlled via motherboard RGB software (e.g., ASUS Aura, MSI Mystic Light). No separate controller or external cable is needed.

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