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Four green DDR4 ECC registered DIMMs in static bags

OWC

OWC 64GB (4x16GB) DDR4 2400 PC4-19200 CL17 1Rx4 288-pin 1.2V ECC Registered RDIMM memory upgrade

SKU CH-8HFY-ZCQXW

Four 16 GB DDR4 2400 ECC registered RDIMMs totalling 64 GB for Cisco UCS C240 M4 servers

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in server workloads
  • 64GB kit with four 16GB modules expands memory capacity
  • DDR4 2400 CL17 speed matches Cisco UCS C240 M4 requirements
  • 2V low voltage reduces power draw in dense configurations
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Purpose-built server upgrade

This 64GB kit contains four 16GB DDR4 2400 registered ECC DIMMs validated for the Cisco UCS C240 M4. It targets administrators who need to expand memory capacity in that specific rack server without mixing registered and unbuffered modules. The PC4-19200 CL17 specification matches the platform's native memory speed.

Compatibility checks before ordering

Verify that every installed DIMM slot currently uses registered ECC memory; mixing with unbuffered or load-reduced types will prevent boot. Confirm the system requires 1.2V DDR4 2400 modules and that the motherboard accepts 1Rx4 organisation across all channels. Cross-reference the Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG to ensure an exact replacement.

Build integration notes

The kit occupies four 288-pin DIMM slots and delivers 64GB of registered ECC capacity for multi-threaded workloads. No heat spreaders are fitted, so airflow across the modules must be maintained by the server's standard cooling design. Registered buffering reduces electrical load on the memory controller, freeing headroom for additional DIMMs if the platform supports higher population counts.

Points forts

  • ECC registered design protects data integrity in server workloads
  • 64GB kit with four 16GB modules expands memory capacity
  • DDR4 2400 CL17 speed matches Cisco UCS C240 M4 requirements
  • 2V low voltage reduces power draw in dense configurations
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Caractéristiques

BrandOWC
Part Number2R4D41R4064S
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C240 M4

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Questions sur cet article

What comes in the OWC 64GB DDR4 2400 ECC Registered RDIMM kit and is anything else required?

The kit includes four 16GB DDR4 2400 PC4-19200 CL17 1Rx4 288-pin 1.2V ECC Registered RDIMM modules. No additional parts are needed for installation in a compatible Cisco UCS C240 M4 server.

Should I choose this 64GB kit or a different capacity for my Cisco UCS C240 M4?

This 64GB kit provides four 16GB modules. Select it if your Cisco UCS C240 M4 has four available DIMM slots and you need 64GB total. Choose a different kit if your slot count or capacity target differs.

What does the DDR4 2400 PC4-19200 CL17 rating mean when the modules are running in a Cisco UCS C240 M4?

The modules operate at 2400MHz with a PC4-19200 bandwidth rating and CL17 latency. In the Cisco UCS C240 M4 they run at 1.2V with ECC and registered buffering for error correction and signal integrity.

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