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Green 288-pin DDR4 RDIMM module with black chips and gold contacts

Brute Networks

Brute Networks 95Y4821 IBM Compatible 16GB DDR4-2133 2Rx4 1.2V Registered RDIMM server RAM

SKU CH-CPXJ-BT7SE

IBM-compatible 16 GB DDR4-2133 registered ECC RDIMM with CL15 latency and 1.2 V operation

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16 GB capacity expands server memory for demanding workloads
  • DDR4-2133 speed with CL15 latency delivers responsive data access
  • Registered 2Rx4 design with ECC protects data integrity in critical systems
  • 20 V operation reduces power draw while maintaining stability
  • Major-brand Samsung, SK Hynix or Micron chips meet IBM 95Y4821 specifications

IBM-Compatible 16 GB DDR4-2133 RDIMM

This 16 GB registered DDR4-2133 module is built for IBM servers that require ECC registered memory. It operates at 1.20 V with a CAS latency of 15 and uses a 2Rx4 organisation on a 288-pin PCB. The part matches IBM part number 95Y4821 and is validated for mission-critical workloads.

Upgrading from lower-capacity or slower DDR4 RDIMMs

Replacing 8 GB or slower DDR4 registered modules with this 16 GB PC4-17000 stick doubles capacity per slot and raises bandwidth to 2133 MT/s. The jump is worth it when the server runs memory-bound databases, virtualization hosts or analytics workloads that exhaust current DIMM capacity or memory throughput.

16 GB per module with registered ECC headroom

Each module delivers 16 GB of error-correcting registered memory, supporting dense VM consolidation and large in-memory datasets. Headroom ends when the platform reaches its maximum DIMM count or when workloads demand speeds beyond DDR4-2133, at which point a newer memory generation is required.

How it compares

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

Price $86.99
Cheaper than about 73% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $5.44 per GB
Cheaper than about 69% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameIBM
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

Will the 288-pin DDR4 RDIMM fit my server's DIMM slots?

The module uses the standard 288-pin DDR4 RDIMM form factor, so it fits any server slot designed for registered DDR4 memory.

What is the correct way to seat this 1.20V registered module, and what step do people miss?

Align the notch with the slot key, press firmly until both side clips click, then verify the server BIOS recognises the full 16GB at DDR4-2133 speed.

When should I expect to replace this 16GB 2Rx4 CL15 kit in a production server?

Registered ECC DDR4 modules typically run for the server's full service life; replace only if diagnostics report correctable errors or a DIMM fails POST.

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