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Green rectangular DDR4 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 2R4D42R816GB 16GB DDR4 2400 ECC RDIMM Server Memory Upgrade

SKU CH-XD70-4W47R

16GB DDR4 2400 ECC registered DIMM for compatible Supermicro server motherboards

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • 16 GB capacity expands server memory headroom
  • DDR4 2400 speed with CL17 latency supports data integrity
  • ECC registered design corrects errors for workload reliability
  • 2 V operation reduces power draw in dense configs
  • Validated for Supermicro X10DR series motherboards

Server ECC RDIMM Upgrade

This 16GB DDR4 module runs at 2400MHz with CL17 latency and 1.2V operation. It uses a 288-pin registered DIMM form factor with 2Rx8 organisation and on-board ECC. The kit is validated for specific Supermicro X10 motherboards including X10DRFF-C, X10DRG-O+-CPU, X10DRG-OT+-CPU, X10DRH-CLN4 and X10DRH-iLN4.

Sustained Workload Behaviour

ECC correction maintains data integrity during continuous server tasks such as virtualisation, database serving or NAS workloads. Registered buffering reduces electrical load on the memory controller, allowing stable operation when all slots are populated. The module replaces Supermicro part numbers MEMDR416LCL06ER24, MEMDR416LHL03ER24 and MEMDR416LSV01ER24.

Thermals and Power

The stick operates at the standard DDR4 1.2V without a heat spreader, relying on chassis airflow for cooling. Low voltage keeps power draw modest in multi-DIMM configurations. No active cooling is required on the module itself. This memory is not compatible with standard desktop platforms or unbuffered DIMM slots.

How it compares

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

Price $105.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.62 per GB
Cheaper than about 60% of the 20,941 comparable items (median $8.19 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 nameOWC
Part number2R4D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro Motherboard X10DRFF-C
Supermicro Motherboard X10DRG-O+-CPU
Supermicro Motherboard X10DRG-OT+-CPU
Supermicro Motherboard X10DRH-CLN4
Supermicro Motherboard X10DRH-iLN4

Other versions of this model

5 more in the same range

Questions about this item

Does the 1.2 V DDR4 2400 RDIMM run hotter than standard DIMMs under 24/7 server load?

No — the 1.2 V DDR4 2400 RDIMM operates at standard JEDEC voltage and has no heat spreader, so thermals match typical registered DDR4 modules.

Which motherboard must I already own for this 288-pin ECC registered kit to work?

A Supermicro X10DRFF-C, X10DRG-O+-CPU, X10DRG-OT+-CPU, X10DRH-CLN4 or X10DRH-iLN4 board with DDR4 RDIMM slots.

Can I add this CL17 2Rx8 module alongside older Supermicro MEMDR416LCL06ER24 sticks?

Yes — it replaces those exact part numbers, so matching speed, voltage, rank and ECC registered type allows mixed population.

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