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Green 288-pin DDR4 LRDIMM module with black chips

A-Tech

A-Tech 16GB DDR4 2133 ECC LRDIMM 2Rx4 Server Memory

SKU CH-BWZX-J8MDN

16GB DDR4 2133 ECC LRDIMM 2Rx4 server memory module with 1.20V operation and CL15 latency for compatible HP systems

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 16GB DDR4 2133MHz ECC LRDIMM for high-capacity server workloads
  • CL15 CAS latency at 1.2V for efficient registered memory performance
  • 2Rx4 load-reduced architecture supports dense multi-module configurations
  • 288-pin DIMM form factor fits standard DDR4 server slots
  • Tested replacement for HP 726720-B21, 752371-081, 774173-001

Server Memory Upgrade

This 16GB DDR4 2133 ECC LRDIMM module is built for servers and workstations that require registered load-reduced memory. It operates at 1.20V with CL15 latency and uses a 2Rx4 rank configuration. The 288-pin DIMM fits systems designed for DDR4 PC4-17000 registered memory.

Sustained Workload Behaviour

Load-reduced buffering reduces electrical load on the memory controller, helping maintain signal integrity when all slots are populated. ECC circuitry corrects single-bit errors during continuous operation, supporting data integrity under heavy multitasking or virtualization loads.

Compatibility Check

Verify that your platform supports DDR4 ECC LRDIMM modules at 2133MHz and accepts a 2Rx4 rank layout. Cross-reference the HP part numbers 726720, 752371, 774173 with your system documentation before ordering. Ensure the motherboard provides 1.2V DDR4 power and 288-pin registered DIMM slots.

How it compares

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

Price $99.99
Cheaper than about 69% 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 $6.25 per GB
Cheaper than about 61% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

How much power does the 1.20V DDR4 2133 module draw when the server runs continuously?

The module operates at 1.20V standard DDR4 voltage; Load Reduced design lowers electrical load on the memory bus, reducing heat during all-day operation.

What must the system already support for this 288-pin ECC LRDIMM to function?

The motherboard must accept DDR4 2133 ECC LRDIMM 2Rx4 modules at 1.20V and provide a 288-pin DIMM slot; verify the server's qualified-vendor list before installing.

Will this 2Rx4 LRDIMM work alongside older registered DIMMs already in my HP server?

Mixing Load Reduced and standard registered DIMMs is not supported; all slots must use the same LRDIMM type for the memory controller to initialise correctly.

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