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Eight silver DDR5 R-DIMM modules with black heat spreaders in a row

V-color

V-color TR516G66S834O DDR5 128GB 6600MHz CL34 ECC R-DIMM memory upgrade

SKU CH-CAJ2-TV8Q0

128 GB DDR5 ECC registered kit runs at 6600 MHz with CL34 latency for W790 workstations

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 6600 (PC5 52800)
  • ChipsetSK Hynix IC
  • CAS latencyCL34
  • Memory timings34-46-46-92
  • Buffer typeRegistered

Capacity 128GB (8 x 16GB)

Speed DDR5 6600 (PC5 52800)

  • 128 GB capacity across eight 16 GB modules for heavy workloads
  • DDR5 6600 speed with CL34 latency for responsive data access
  • ECC registered design detects and corrects errors automatically
  • Built-in thermal sensor monitors temperature from 0 to 85 °C
  • Validated on 10-layer PCB with Hynix ICs for workstation stability

Workstation ECC DDR5 kit

This V-color TR516G66S834O kit provides 128GB of DDR5 memory across eight 16GB registered DIMMs. It is built for W790 workstation motherboards and supports ECC error correction. The modules are not compatible with standard desktop PCs or laptops.

Registered design with thermal sensor

Each 288-pin RDIMM uses a 1Rx8 organisation with SK Hynix ICs on a 10-layer PCB. A built-in thermal sensor monitors operating temperatures from 0 to 85°C. The registered buffer and heat spreader help maintain signal integrity in multi-DIMM configurations.

XMP 6600MHz CL34 at 1.4V

The kit runs at 6600MHz with timings of 34-46-46-92 when the Intel XMP profile is enabled on a W790 platform. Without XMP the modules will operate at the standard DDR5 base frequency. Buyers needing higher capacities or lower voltages must choose a different specification.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $4,165.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.55 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameV-Color
Product lineOC R-DIMM
Model nameTR516G66S834O
Part numberTR516G66S834O
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6600 (PC5 52800)
Processor
ChipsetSK Hynix IC
Memory
CAS latencyCL34
Memory timings34-46-46-92
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderYes
Compatibility
Compatible systemsW790 Workstation

Other versions of this model

5 more in the same range

Questions about this item

What does the DDR5 6600 (PC5 52800) rating mean for real-world throughput?

The modules run at 6600 MT/s with CL34-46-46-92 timings, delivering PC5 52800 bandwidth when the W790 workstation platform enables the Intel XMP profile.

Will these 288-pin RDIMMs fit my W790 workstation motherboard?

Yes, each 16 GB stick is a 288-pin DDR5 RDIMM with a heat spreader, designed for W790 workstation boards and not compatible with standard desktop or laptop slots.

How do I install the 8-module kit and enable the rated speed?

Populate all eight slots on the W790 board, then enter the BIOS and load the Intel XMP profile to set 6600 MT/s at 1.4 V; skipping the XMP step leaves the memory at default speeds.

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