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Green circuit board with black memory chips and gold edge connector

OWC

OWC 16GB DDR4 2400 CL17 ECC Registered RDIMM 288-pin 1.2V 1Rx4 memory upgrade

SKU CH-FFB6-5EXZX

16 GB DDR4 2400 CL17 ECC registered RDIMM for Cisco HX220c M4 and HX240c M4 servers

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 16GB

  • ECC registered design protects data integrity in servers
  • 16 GB single module expands Cisco HX220c M4 and HX240c M4 memory
  • DDR4 2400 CL17 at 1.2 V balances speed and power efficiency
  • 288-pin RDIMM form factor fits registered DIMM slots only
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Server memory upgrade for Cisco HX220c M4

This OWC module adds 16GB of DDR4 ECC registered memory to compatible Cisco servers. It is built for workstation and server platforms that require registered DIMMs with error correction. The single 1Rx4 rank module installs in a standard 288-pin DDR4 slot and operates at 1.2V.

DDR4 2400 registered ECC limits

The PC4-19200 standard caps transfer rates at 2400 MT/s with CL17 latency. Registered buffering adds one clock cycle of delay versus unbuffered memory but allows higher total capacities per channel. Mixing this module with unbuffered or load-reduced ECC DIMMs is not supported and will prevent the system from booting.

Replaces Cisco UCSMR1X161RVA

This module directly substitutes the listed Cisco part numbers in HX220c M4 and HX240c M4 servers. The upgrade is worthwhile when expanding memory capacity for virtualization or database workloads that exceed the current installed amount. It is not suitable for standard desktop computers or any platform that requires unbuffered memory.

How it compares

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

Price $107.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.75 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R4D41R416 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco HX220c M4
Cisco HX240c M4

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 16 GB module or add multiple sticks for my Cisco HX220c M4?

Each module provides 16 GB of DDR4 2400 ECC Registered memory; add as many sticks as your server's DIMM slots and maximum capacity allow.

What does the DDR4 2400 CL17 rating mean once the module is installed in a Cisco HX240c M4?

The module runs at 2400 MT/s with a CAS latency of 17 cycles, delivering PC4-19200 bandwidth for server workloads.

Will the 288-pin ECC Registered RDIMM work with standard desktop motherboards?

No — this DDR4 2400 CL17 Registered DIMM is designed for Cisco HX220c M4 and HX240c M4 servers and is not compatible with unbuffered desktop platforms.

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