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Four green DDR4 RDIMM modules in anti-static tray

OWC

OWC 128GB (4×32GB) DDR4 2400 ECC Registered RDIMM memory upgrade

SKU CH-WZVT-DBZFP

128 GB DDR4-2400 ECC registered quad-rank kit for Cisco HX220c M4 and HX240c M4 servers

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • ECC registered design prevents data errors in servers
  • 128 GB kit expands capacity with four 32 GB modules
  • DDR4 2400 speed matches Cisco HX220c M4 and HX240c M4 specs
  • 2 V operation reduces power draw under load
  • 288-pin RDIMM form factor fits validated server slots

Server Memory Kit

This OWC kit supplies 128GB of DDR4 ECC Registered memory across four 32GB modules. It is built for Cisco HX220c M4 and HX240c M4 servers that require registered DIMMs with error correction.

Compatibility Check

Verify that your system accepts 288-pin DDR4 RDIMMs running at 2400 MT/s with CL17 latency and 1.2V operation. Registered modules cannot be mixed with unbuffered or load-reduced memory in the same platform.

Sustained Operation

ECC circuitry detects and corrects single-bit errors during continuous workloads, helping maintain data integrity over long periods. The registered design reduces electrical load on the memory controller when all four slots are populated.

Highlights

  • ECC registered design prevents data errors in servers
  • 128 GB kit expands capacity with four 32 GB modules
  • DDR4 2400 speed matches Cisco HX220c M4 and HX240c M4 specs
  • 2 V operation reduces power draw under load
  • 288-pin RDIMM form factor fits validated server slots

Specifications

BrandOWC
Part Number2R4D42R4128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco HX220c M4
Cisco HX240c M4

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Questions about this item

What comes in the box and does anything else need to be purchased?

The kit includes four 32 GB DDR4 2400 ECC Registered RDIMM modules for a total of 128 GB. No extra parts are required for installation.

Why choose the 128 GB 4×32 GB kit instead of a smaller capacity?

This 128 GB kit uses four 32 GB 2Rx4 modules running at 2400 MHz CL17, matching the maximum supported density per slot for the Cisco HX220c M4 and HX240c M4.

What does the 2400 MHz speed mean once the memory is installed in the server?

The modules operate at DDR4 2400 (PC4-19200) with CL17 latency at 1.2 V, delivering the rated throughput and error-correction the Cisco HX220c M4 and HX240c M4 expect.

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