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Green rectangular DDR4 RDIMM module with gold 288-pin edge connector and black memory chips

Cisco Systems, Inc.

Cisco Systems, Inc. UCS-MR-1X161RV-A= 16GB DDR4 2400 RDIMM

SKU CH-K0Z9-KQXAE MPN UCS-MR-1X161RV-A=

16 GB DDR4 2400 registered ECC memory module for server capacity upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4
  • Product type288-Pin DDR4 SDRAM
  • 16 GB capacity supports larger workloads
  • DDR4 2400 speed delivers 19200 MB/s bandwidth
  • ECC registered design protects data integrity
  • 20 V operation reduces power draw
  • 288-pin RDIMM fits compatible server slots

Cisco UCS 16 GB DDR4 2400 RDIMM

This registered DDR4 module delivers 16 GB of ECC-protected memory at 2400 MT/s for compatible Cisco UCS servers. It is designed for administrators who need to expand capacity in existing validated platforms. The 1.20 V operating voltage matches standard DDR4 specifications.

288-pin registered DIMM with 1Rx4 organisation

The registered buffer reduces electrical load on the memory controller, allowing higher densities per channel in supported systems. ECC circuitry detects and corrects single-bit errors to maintain data integrity in production workloads. The single-rank x4 layout fits standard DDR4 slots without mechanical interference.

Verify your server model accepts 16 GB DDR4 2400

Check the system memory-qualified vendor list and maximum DIMM-per-channel limits before ordering. Ensure the platform supports 1.20 V DDR4 RDIMMs and that the target slots are configured for registered operation. Mixed-rank or mixed-voltage populations may prevent the module from functioning.

How it compares

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

Price $529.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $33.12 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameCisco Systems, Inc.
Model nameUCS-MR-1 × 161RV-A=
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.34 kg
Package size184 × 152 × 49 mm

Questions about this item

What does the DDR4 2400 (PC4 19200) rating mean for real-world throughput?

The module operates at 2400 MT/s on a registered DDR4 channel, and the PC4 19200 designation reflects the peak transfer rate the JEDEC standard assigns to that speed grade.

Will this 288-pin registered DIMM fit in my Cisco UCS server's memory slots?

It uses the standard 288-pin DDR4 RDIMM form factor with 1.20 V operation, which matches the physical and electrical slot specification for Cisco UCS platforms that accept 1Rx4 registered modules.

What is the correct way to seat this RDIMM so the register and ECC functions initialise properly?

Align the module notch with the slot key, press down evenly on both ends until the ejector tabs click shut, then verify in BIOS that the full 16 GB appears as registered ECC at 2400 MT/s.

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