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Two black DDR5 DIMMs with glossy piano-black finned heatspreaders and RGB lighting zones

G.SKILL

G.SKILL Trident Z5 CK 48GB (2x24GB) DDR5 8400 CL40 F5-8400C4052G24GX2-TZ5CRK desktop RAM

SKU CH-YJYX-WQ67F MPN F5-8400C4052G24GX2-TZ5CRK

Dual-channel 48 GB DDR5 kit at 8400 MT/s with CL40 timings and a built-in clock driver for signal stability

  • Total capacity48 GB (2 × 24 GB)
  • Rated speedDDR5 8400 (PC5 67200)
  • CAS latencyCL40
  • Memory timings40-52-52-134
  • Rated voltage1.4 V
  • Kit configurationDual Channel Kit
  • Built-in clock driver strengthens signals for stable high-frequency operation
  • 48 GB dual-channel kit gives ample capacity for demanding workloads
  • DDR5 8400 speed with CL40 timing delivers responsive performance
  • 40 V voltage supports Intel XMP 3.0 profiles for easy tuning
  • Customisable RGB lighting on glossy black heatspreaders adds visual flair

Capacity and channel layout

This kit delivers 48 GB across two 24 GB modules in a dual-channel configuration. It is built for enthusiasts and overclockers who want maximum throughput on Intel Core Ultra 200 K-series platforms. The 288-pin CU-DIMM form factor fits standard desktop DIMM slots.

Build integration and signal stability

A built-in clock driver chip on each module strengthens the clock signal from the memory controller to the DRAM. This improves stability at high frequency and reduces the burden on motherboard trace routing. The kit relies on Intel XMP 3.0 profiles for one-click configuration on Z890 chipset motherboards.

Speed headroom and voltage limits

Rated at DDR5 8400 with timings of 40-52-52-134 at 1.40 V, the modules provide substantial frequency headroom for memory-intensive workloads. The 1.40 V operating voltage is the upper bound for daily use; pushing beyond the validated profile requires advanced cooling and motherboard support not covered by the XMP profile.

How it compares

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

Price $758.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 48 GB (2 × 24 GB)
Higher than about 85% of the 3,251 comparable items (median 16 GB).
Price per GB $15.81 per GB
Pricier than about 89% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineTrident Z5 CK
Model nameF5-8400C4052G24GX2-TZ5CRK
Total capacity48 GB (2 × 24 GB)
Product type288-Pin PC RAM
Product colorBlack
Performance
Rated speedDDR5 8400 (PC5 67200)
Memory
CAS latencyCL40
Memory timings40-52-52-134
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0
Heat spreaderYes
Power
Rated voltage1.4 V
Size & build
Shipping weight0.18 kg
Package size178 × 140 × 25 mm
Compatibility
Recommended forIntel 800 Series Chipset
Intel® Core™ Ultra 200 Series Desktop Processors
More details
LED lightingRGB

Questions about this item

Will this kit fit a motherboard with standard 288-pin DDR5 slots?

Yes, the modules use the standard 288-pin DDR5 form factor and will install in any desktop board with DDR5 DIMM slots.

What motherboard and CPU combination is this memory validated for?

The kit is developed for Intel 800 series chipsets, specifically Z890, and Intel Core Ultra 200 K-series desktop processors.

Does the 1.40 V operating voltage require manual BIOS adjustment or is it handled automatically?

The kit includes an Intel XMP 3.0 profile that sets the 8400 MT/s speed, CL40 timings and 1.40 V voltage automatically when enabled in the BIOS.

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