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Four green DDR4 RDIMM modules with gold contacts and black chips

OWC

OWC 64GB (4x16GB) DDR4 2933 ECC Registered RDIMM for PowerEdge C4140

SKU CH-KZSK-PYNFM

64 GB ECC registered DDR4-2933 kit with four 16 GB modules for PowerEdge C4140 servers

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB (4 x 16GB)

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  • 64GB total capacity from four 16GB modules for dense server workloads
  • DDR4 2933 speed with CL21 latency tuned for PowerEdge C4140
  • ECC registered design protects data integrity in critical applications
  • 2V operation lowers power draw across the memory subsystem
  • JEDEC and RoHS compliant for warranty-safe upgrades

System-Specific Server Memory Kit

This 64 GB kit contains four 16 GB DDR4 2933 ECC Registered RDIMMs built for the PowerEdge C4140 with SkyLake CPUs. The modules run at PC4-23400 with CL21 latency at 1.2 V and use a 2Rx4 organisation. They are designed for server and workstation workloads that require error correction and registered signalling.

Compatibility Checks Before Ordering

Verify that your C4140 uses SkyLake processors and accepts 288-pin DDR4 ECC Registered DIMMs. This memory will not work in standard desktop boards or in systems that require unbuffered or load-reduced modules. The kit is backward compatible with 2133, 2400 and 2666 MHz speeds, but all slots must be populated with matching registered ECC parts.

What the Kit Changes

Adding four matched 16 GB modules brings the server to 64 GB of registered ECC capacity, enabling larger datasets and more virtual machines without mixing module types. The JEDEC-standard, RoHS-compliant design keeps the upgrade warranty-safe and avoids timing mismatches that can occur with mixed ranks or voltages.

Puntos fuertes

  • 64GB total capacity from four 16GB modules for dense server workloads
  • DDR4 2933 speed with CL21 latency tuned for PowerEdge C4140
  • ECC registered design protects data integrity in critical applications
  • 2V operation lowers power draw across the memory subsystem
  • JEDEC and RoHS compliant for warranty-safe upgrades

Especificaciones

BrandOWC
Part Number2R9D42R4064S
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemPowerEdge C4140 (SkyLake CPU)

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Preguntas sobre este artículo

What is included in the OWC 64GB kit and is anything else needed to install it in a PowerEdge C4140?

The kit contains four 16GB DDR4 2933 ECC registered RDIMM modules (part number 2R9D42R4064S). No extra parts are required; the modules plug directly into the server's 288-pin DIMM slots.

Why choose the 64GB (4x16GB) CL21 2Rx4 version over other capacities or speeds for the C4140?

This 64GB kit matches the C4140's supported DDR4 2933 speed with CL21 latency and 2Rx4 organisation, providing the maximum registered ECC capacity per module that the SkyLake-based platform validates.

What does the 2933 MT/s rating mean once the modules are running in the C4140?

The modules operate at 2933 MT/s (PC4-23400) at 1.2V with CL21 timing; if the system runs at a lower memory speed they will down-clock to 2666, 2400 or 2133 MT/s automatically.

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