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Four silver DDR5 RDIMM modules with black heat spreaders and gold contacts

V-color

V-color TRA548G64D832Q 192GB (4 x 48GB) DDR5 6400 CL32 2Rx8 ECC R-DIMM server RAM

SKU CH-905W-0Y3V9 MPN TRA548G64D832Q

192GB DDR5 ECC registered memory kit running at 6400MHz CL32 for TRX50 workstations with AMD EXPO overclocking support

  • Total capacity192 GB (4 × 48 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetHynix IC
  • CAS latencyCL32
  • Memory timings32-39-39-102
  • Rated voltage1.4 V

Capacity 192GB (4 x 48GB)

Speed DDR5 6400 (PC5 51200)

Rank 2Rx8

  • 192 GB capacity across four 48 GB modules for large workstation workloads
  • DDR5 6400 speed with CL32 latency enables fast data throughput
  • ECC registered design protects data integrity in critical applications
  • AMD EXPO profile simplifies overclocking on TRX50 platforms
  • Hynix ICs on 10-layer PCB deliver validated signal quality

192GB DDR5 ECC Registered kit

This V-color OC R-DIMM kit delivers 192GB across four 48GB modules running at DDR5 6400 CL32. It targets TRX50 workstation builders who need high-capacity registered ECC memory with an AMD EXPO profile for supported overclocking. Each module uses Hynix ICs on a 10-layer PCB tested with automated sorting equipment.

Registered DIMMs for TRX50 motherboards

The 288-pin registered design requires a motherboard with RDIMM support and a compatible Threadripper PRO 7000 series processor. Registered buffering reduces electrical load on the memory controller, allowing this 2Rx8 quad-channel population. The on-board PMIC manages power delivery at the specified 1.40V operating voltage.

EXPO profile and on-die ECC

The AMD EXPO profile configures the rated 6400MT/s speed and 32-39-39-102 timings without manual tuning. On-die ECC provides an additional error-correction layer alongside the module-level registered ECC. Heat spreaders are included on all four modules to assist thermal management under sustained workloads.

How it compares

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

Price $2,532.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 192 GB (4 × 48 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $13.19 per GB
Pricier than about 73% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameV-Color
Product lineOC R-DIMM
Model nameTRA548G64D832Q
Part numberTRA548G64D832Q
Total capacity192 GB (4 × 48 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetHynix IC
Memory
CAS latencyCL32
Memory timings32-39-39-102
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Memory profilesAMD EXPO
Heat spreaderYes
Power
Rated voltage1.4 V
Size & build
Shipping weight0.40 kg
Package size160 × 132 × 22 mm

Other versions of this model

5 more in the same range

Questions about this item

At what CAS latency does the kit run when all four 48 GB modules operate at DDR5 6400?

The modules are rated CL32 at the full 6400 MT/s speed, with timings of 32-39-39-102.

How much power and heat should I expect from a 1.40 V DDR5 kit running continuously in a TRX50 workstation?

Operating at 1.40 V with on-board PMICs, the four registered DIMMs draw more power than standard JEDEC voltage; ensure your chassis airflow can handle the extra heat from sustained loads.

Which motherboard platform and CPU family are required to use the AMD EXPO profile on this memory?

The kit is validated for AMD TRX50 workstation motherboards paired with Threadripper PRO 7000 series processors.

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