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Four bare green DDR5 RDIMM modules in a row

G.SKILL

G.SKILL F5-6800R3445G32GQ4-G5N 128GB (4 x 32GB) DDR5 6800 ECC Registered server RAM

SKU CH-V0ZT-XJP2T MPN F5-6800R3445G32GQ4-G5N

128 GB quad-channel DDR5-6800 RDIMM kit with ECC and AMD EXPO for Threadripper 7000 workstations

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6800 (PC5 54400)
  • ChipsetAMD TRX50 Chipset
  • CAS latencyCL34
  • Memory timings34-45-45-108
  • Rated voltage1.4 V
  • 128 GB capacity for memory-intensive workloads
  • DDR5 6800 speed with AMD EXPO profile support
  • ECC registered design ensures data integrity
  • CL34 34-45-45-108 timings optimised for throughput
  • Quad-channel 4 x 32 GB kit for TRX50 platforms

128GB Quad-Channel DDR5-6800 ECC Kit

This 128GB kit contains four 32GB DDR5-6800 RDIMMs built for AMD Threadripper 7000X workstations. Registered ECC operation and AMD EXPO profiles target professionals who need maximum bandwidth with error correction for rendering, simulation and data-intensive workloads. The modules run at CL34 34-45-45-108 timings on 1.40V.

Registered 288-Pin RDIMM Design

Each module uses a registered 288-pin DDR5 form factor without a heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, enabling stable four-channel population on TRX50 motherboards. The bare PCB layout fits dense server configurations where tall spreaders would block adjacent slots or airflow paths.

AMD EXPO Overclock Limits

Rated DDR5-6800 speed and CL34 timings are only guaranteed when the CPU memory controller and motherboard firmware support the EXPO profile. Stability at 6800 MT/s varies by silicon quality and board topology; systems that cannot sustain the profile will fall back to standard JEDEC speeds. Buyers without TRX50 platforms or Threadripper 7000X CPUs cannot reach the advertised frequency.

How it compares

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

Price $4,715.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $36.84 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineG5 Neo Series
Model nameF5-6800R3445G32GQ4-G5N
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6800 (PC5 54400)
Processor
ChipsetAMD TRX50 Chipset
Memory
CAS latencyCL34
Memory timings34-45-45-108
ECC supportYes
Buffer typeRegistered
Kit configurationQuad Channel Kit
Memory profilesAMD EXPO
Heat spreaderNo
Power
Rated voltage1.4 V
Size & build
Shipping weight0.27 kg
Package size244 × 178 × 23 mm

Questions about this item

Does this DDR5 6800 kit run at the rated speed through AMD EXPO on a TRX50 motherboard?

The kit uses an AMD EXPO profile to reach DDR5 6800 with CL34-45-45-108 timings at 1.40 V. Stable operation depends on the motherboard QVL and the CPU memory controller.

What physical slot and channel layout do the four 32 GB RDIMMs require?

Four 288-pin DDR5 RDIMM modules fill a quad-channel configuration on a compatible AMD TRX50 motherboard with four memory slots.

How do I enable the rated 6800 MT/s speed after installing the modules?

Enter the BIOS, select the AMD EXPO profile for this kit, save and reboot; skipping the EXPO step leaves the modules at JEDEC default speeds.

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