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Two green DDR4 ECC registered DIMMs with gold contacts

OWC

OWC 32GB (2x16GB) DDR4 2933 CL21 ECC RDIMM PowerEdge C4140

SKU CH-H12K-WDQ7C

32 GB DDR4 ECC registered DIMM kit, 2 × 16 GB at 2933 MHz CL21, 1.2 V, 288-pin, for PowerEdge C4140 servers

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB (2 x 16GB)

Show 4 more
  • ECC registered design prevents data corruption in servers
  • 32 GB kit (2 × 16 GB) doubles capacity for virtualization
  • DDR4 2933 CL21 at 1.2 V balances speed and efficiency
  • JEDEC-standard 288-pin RDIMM fits PowerEdge C4140 slots
  • Backward compatible with 2133, 2400 and 2666 MHz systems

PowerEdge C4140 DDR4 ECC RDIMM Kit

This 32GB kit contains two 16GB DDR4 2933 modules built to JEDEC PC4-23400 CL21 specifications. The 288-pin registered DIMMs operate at 1.2V and include ECC error correction for data integrity. They are validated specifically for the PowerEdge C4140 platform with SkyLake CPUs.

Server and workstation upgrades only

The modules suit administrators expanding memory in a compatible Dell PowerEdge C4140 or similar registered-ECC platform. They will not work in standard desktop boards, consumer laptops or any system that requires unbuffered or load-reduced DIMMs. Buyers needing non-ECC memory should look elsewhere.

Ready-to-install dual-module kit

The package delivers a matched pair so the server can populate two slots immediately without mixing ranks or speeds. Backward compatibility with 2133, 2400 and 2666MHz buses allows the kit to clock down automatically if the platform demands it. No heat spreaders are included, relying on system airflow for cooling.

How it compares

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

Price $212.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.66 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R4032P
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPowerEdge C4140 (SkyLake CPU)

Other versions of this model

5 more in the same range

Questions about this item

What server must I already have for this 288-pin ECC registered kit to install correctly?

The modules are validated for the PowerEdge C4140 with a SkyLake CPU and will not work in standard desktop systems.

Can I keep my existing 2133 MHz or 2400 MHz DDR4 ECC registered DIMMs and add this 2933 MHz kit alongside them?

Yes, the kit is backward compatible with 2133 MHz, 2400 MHz and 2666 MHz ECC registered memory, though all modules will run at the speed of the slowest installed DIMM.

How do I confirm the 32 GB kit is running at 2933 MHz with ECC active after installation?

Check the system BIOS or a hardware utility such as IPMI; it should report 32 GB total, 2933 MT/s data rate, CL21 timings, 1.2 V and ECC registered mode enabled.

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