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Two green DDR4 RDIMM modules, no heat spreader, 288 pins each

OWC

OWC 32GB (2x16GB) DDR4 2933 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM Kit PowerEdge C4140 CascadeLake

SKU CH-TM1Q-94F6B

A 32 GB kit of two 16 GB DDR4 2933 ECC registered RDIMMs for PowerEdge C4140 CascadeLake 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
  • 32 GB kit expands server capacity for virtualization and databases
  • ECC registered design detects and corrects single-bit errors automatically
  • DDR4 2933 CL21 at 1.2 V balances throughput with power efficiency
  • 2Rx4 dual-rank organisation improves memory controller utilisation
  • JEDEC and RoHS compliant for warranty-safe deployment in PowerEdge C4140

OWC 32GB DDR4 ECC RDIMM Kit

This kit provides 32GB of DDR4 memory in two 16GB registered DIMMs for the PowerEdge C4140 with CascadeLake CPUs. It is built for servers and workstations that require error-correcting code and registered buffering. It will not work in standard desktop computers or alongside unbuffered or load-reduced modules.

288-Pin Registered Modules Without Heat Spreaders

Each module uses a 288-pin RDIMM form factor and operates at 1.2V without a heat spreader. The registered design places a buffer on the command bus to reduce electrical load on the server memory controller. Ensure your chassis and CPU cooler clearance accommodate bare modules in all populated slots.

DDR4 2933 CL21 2Rx4 PC4-23400 Specification

The modules run at 2933 MT/s with a CAS latency of 21 and a 2Rx4 rank organisation. They are backward compatible with 2666, 2400 and 2133 MT/s bus speeds in supported systems. Verify the server BIOS and CPU memory-controller limits before installation to match the required data rate.

How it compares

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

Price $194.99
Cheaper than about 59% 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 $6.09 per GB
Cheaper than about 64% 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 (CascadeLake CPU)

Other versions of this model

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Questions about this item

What DDR4 speed and PC4 rating does this kit run at?

The modules are rated DDR4 2933 (PC4-23400) with CL21 latency and 1.2V operation.

Will these 288-pin RDIMMs fit a Dell PowerEdge C4140 with CascadeLake CPUs?

Yes — the kit is validated for PowerEdge C4140 (CascadeLake) and uses the standard 288-pin ECC Registered form factor.

How do I install the two 16GB sticks correctly, and what common step is missed?

Populate matching memory channels per the C4140 service manual; the step often missed is ensuring both modules are fully seated until the retention clips click.

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