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Four green DDR4 DIMMs with black chips no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM4096722400ECCR 128GB (4x32GB) DDR4 2400 ECC Registered DIMM

SKU CH-RS43-E3BYP

A 128GB quad-channel kit of DDR4 2400 ECC registered DIMMs validated for ASRock EPC612D8, EPC612D8A, EPC612D8A-TB and EPC621D8A server boards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 128 GB total capacity across four 32 GB modules
  • DDR4 2400 speed rated at PC4 19200 for server workloads
  • ECC registered design with CL17 timing protects data integrity
  • 2 V operation reduces power draw in dense configurations
  • Validated for ASRock EPC612D8, EPC612D8A, EPC612D8A-TB and EPC621D8A boards

Targeted Server Upgrade

This 128 GB kit contains four 32 GB DDR4 registered ECC DIMMs built for ASRock server boards EPC612D8, EPC612D8A, EPC612D8A-TB and EPC621D8A. It suits administrators expanding memory capacity on those specific platforms. Builders using other motherboards or needing unbuffered modules cannot use this kit.

Kit Composition

The package delivers four matching 288‑pin sticks rated at 2400 MHz with CL17 timing at 1.2 V. Each module is a dual‑rank 2Rx4 design using major‑brand chips. No heat spreaders or extra software are included, so the parts install directly into the board’s DIMM slots.

Registered ECC Build

Registered signalling and on‑die ECC protect data integrity in multi‑socket workloads. The 288‑pin DDR4 interface fits only DDR4‑compatible slots; the modules will clock down automatically if the installed processor requires a lower speed. Mixing these RDIMMs with LRDIMMs is not supported by the target boards.

How it compares

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

Price $160.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $1.26 per GB
Cheaper than about 96% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM4096722400ECCR
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock Server Board EPC612D8, EPC612D8A, EPC612D8A-TB, EPC621D8A
In the box
Included items4 Memory RAM Sticks

Questions about this item

Will the 4x32GB DDR4-2400 ECC Registered kit need firmware updates or lead replacement later?

No firmware is required; the modules run at 1.2V with CL17 timings and carry a limited lifetime warranty from Computer Memory Solutions.

What sustained-use limit appears first with these 2Rx4 Registered DIMMs?

The platform caps ECC RDIMM capacity at 256GB across eight sockets, so adding more than this kit’s 128GB will hit that ceiling first.

How much heat and power do the four 288-pin DDR4 sticks produce when running all day?

Each module draws 1.2V without a heat spreader; typical Registered DDR4 power stays low enough for standard server airflow.

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