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Green rectangular DDR4 RDIMM module with black chips and gold edge connector

OWC

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

SKU CH-KBZF-G5RFH

16 GB DDR4 2400 CL17 ECC registered RDIMM for Cisco UCS B420 M4 and C460 M4 servers

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

Capacity 16GB

  • 16 GB capacity lets you run larger workloads on supported Cisco servers
  • ECC registered design detects and corrects memory errors for reliable operation
  • DDR4 2400 CL17 timing delivers 19200 MT/s bandwidth at 1.2 V
  • Single 1Rx4 rank 288-pin module fits Cisco UCS B420 M4 and C460 M4 (DDR4)
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Server-grade DDR4 ECC RDIMM

This 16 GB DDR4 2400 CL17 registered DIMM is built for Cisco UCS B420 M4 and C460 M4 servers. It delivers error-correcting, buffered memory for workloads that demand data integrity and sustained uptime.

Verify registered ECC support

Confirm your system requires 288-pin registered ECC RDIMMs at 1.2 V and does not use unbuffered or load-reduced modules. Mixing registered memory with other ECC types will prevent boot or cause instability.

Replaces Cisco UCSMR1X161RVA and UCSMR1X161RVG

The module matches the original 1Rx4 organisation and PC4-19200 speed. The upgrade is worthwhile when expanding capacity on supported platforms or when a failed DIMM must be swapped with a validated equivalent.

How it compares

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

Price $108.99
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 $6.81 per GB
Cheaper than about 58% 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 UCS B420 M4
Cisco UCS C460 M4 (DDR4)

Other versions of this model

5 more in the same range

Questions about this item

Does the module ship alone or with any extra parts, and what must I source separately?

The package contains a single 16GB DDR4 2400 CL17 288-pin ECC Registered RDIMM. No cables, brackets or tools are included; you only need a compatible Cisco UCS B420 M4 or C460 M4 (DDR4) slot.

I see one 16GB 2400 CL17 ECC Registered RDIMM listed — are there other capacities or speeds for this same platform?

This listing covers the 16GB 2400 CL17 1Rx4 1.2V Registered module that replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG. Other capacities or speeds would be separate part numbers.

What does the 2400 CL17 rating actually deliver inside a Cisco UCS B420 M4 or C460 M4?

In those servers the module runs at DDR4 2400 (PC4-19200) with CAS latency 17 at 1.2V, providing ECC error correction and registered buffering for stable operation in multi-DIMM configurations.

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