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Green 288-pin DDR4 server memory module with black heat spreader and gold contacts

Cisco Sales

Cisco Sales UCS-MR-X64G2RT-H 64GB DDR4-2933 ECC Reg CL21 Dual Rank server RAM

SKU CH-RB9G-HM9CT

64GB DDR4-2933 ECC registered dual-rank module with CL21 latency for server workloads

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Buffer typeRegistered
  • Product type288-Pin DDR4 SDRAM
  • 64 GB capacity supports memory-intensive server workloads
  • DDR4-2933 speed delivers 23400 MT/s data transfer rate
  • ECC registered design detects and corrects memory errors
  • CL21 CAS latency provides responsive access timing
  • Dual rank 288-pin module fits compatible DDR4 server slots

Cisco UCS 64GB DDR4-2933 Registered ECC Module

This Cisco UCS memory module delivers 64GB of DDR4-2933 registered ECC capacity in a 288-pin dual-rank form factor. It operates at PC4-23400 with a CAS latency of CL21 for stable server performance. The registered design reduces electrical load on the memory controller for reliable operation in dense configurations.

Suited For Enterprise Servers Requiring High Density

This module suits administrators expanding Cisco UCS platforms or compatible registered-ECC systems needing maximum capacity per slot. Builders of consumer desktops, workstations using unbuffered memory, or laptops requiring SODIMMs should look elsewhere. Systems limited to single-rank populations or lower speeds will not support this part.

288-Pin DDR4 Registered ECC Interface Determines Fit

The 288-pin DDR4 registered ECC interface is the single specification that decides compatibility with the target motherboard. Memory controllers must accept registered dual-rank modules at 2933 MT/s with ECC enabled. Verifying this requirement against the platform qualified-vendor list confirms whether the module will function.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $385.99
Pricier than about 65% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $6.03 per GB
Cheaper than about 63% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameCisco
Part numberUCS-MR-X64G2RT-H
Total capacity64 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered

Questions about this item

Does my server need 288-pin DDR4 DIMM slots to install this 64GB module?

Yes, the module is a 288-pin DDR4 SDRAM stick and requires a matching DDR4 DIMM slot on the motherboard.

Can I mix this PC4-23400 CL21 registered ECC stick with slower DDR4 modules already in my system?

The module runs at DDR4-2933 with CL21 timings; the memory controller will down-clock all populated slots to the slowest installed speed and latency.

How do I verify the module is running at 2933MHz with ECC active after installation?

Check the BIOS memory information or use a tool such as dmidecode to confirm the reported speed is 2933 MT/s and that ECC status shows enabled.

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