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Four green DDR4 ECC RDIMM modules without heat spreaders

OWC

OWC 64GB (4×16GB) DDR4 2400 CL17 ECC RDIMM memory upgrade

SKU CH-C3TT-C3VKZ

64 GB kit of four 16 GB DDR4 2400 CL17 ECC registered RDIMMs for Cisco HX220c M4 and HX240c 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 servers
  • 64 GB kit (4 × 16 GB) expands capacity for virtualization
  • DDR4 2400 CL17 at 1.2 V balances speed and efficiency
  • 288-pin RDIMM form factor fits Cisco HX220c M4 and HX240c M4
  • Replaces Cisco UCS-MR-1X161RVA and UCS-MR-1X161RVG part numbers

Target Server Upgrade

This 64 GB kit contains four 16 GB DDR4 ECC registered DIMMs built for Cisco HX220c M4 and HX240c M4 servers. It replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG. The modules are not compatible with standard desktop computers and must not be mixed with unbuffered or load-reduced memory.

Sustained Workload Behaviour

ECC registered operation detects and corrects single-bit errors during continuous server tasks, helping to maintain data integrity over long periods. The 1.2 V DDR4 2400 CL17 specification delivers stable throughput for virtualisation and database workloads without increasing power draw.

Installation Notes

Each 288-pin RDIMM installs in the standard server DIMM slots; the 1Rx4 organisation allows full population of available channels. The kit ships without heat spreaders, so airflow in the chassis must be sufficient. Buyers who need larger capacities per module or a different memory generation cannot use this kit.

Points forts

  • ECC registered design protects data integrity in servers
  • 64 GB kit (4 × 16 GB) expands capacity for virtualization
  • DDR4 2400 CL17 at 1.2 V balances speed and efficiency
  • 288-pin RDIMM form factor fits Cisco HX220c M4 and HX240c M4
  • Replaces Cisco UCS-MR-1X161RVA and UCS-MR-1X161RVG part numbers

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 HX220c M4
Cisco HX240c M4

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Questions sur cet article

How much power does the 1.2V DDR4 2400 kit draw when the server runs continuously?

Each module operates at 1.2V, the standard DDR4 voltage, so total draw depends on the server's memory controller and workload rather than the kit itself.

What must the Cisco HX220c M4 or HX240c M4 already have for this 288-pin ECC RDIMM kit to work?

The server must support DDR4 ECC registered DIMMs and have four free 288-pin slots; it cannot use unbuffered or load-reduced memory alongside these modules.

Can I mix these CL17 1Rx4 modules with older Cisco UCS-MR-1X161RVA sticks still in the chassis?

Yes, they replace Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG, so they are electrically compatible with those existing modules.

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