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Green PCB DDR4 288-pin registered DIMM module with black chips

A-Tech

A-Tech 16GB DDR4 2400 ECC RDIMM 1Rx4 for HP 805349-B21 Server Memory

SKU CH-JCBF-63AYJ

16 GB DDR4 2400 ECC registered DIMM, 1Rx4, CL17, 1.2 V, 288-pin, compatible with HP 805349-B21 and related part numbers

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16 GB DDR4 2400 MHz adds capacity for heavier workloads
  • ECC registered design detects and corrects single-bit errors automatically
  • CL17 latency at 1.20 V balances speed with server-grade stability
  • 1Rx4 single-rank layout keeps signal integrity clean on multi-DIMM channels
  • Validated replacement for HP 805349-B21 and nine other part numbers

16 GB DDR4 2400 ECC RDIMM

This 16 GB DDR4 2400 ECC registered DIMM is built for HP server and workstation platforms. It targets administrators who need to expand memory capacity on compatible systems. The module uses a 1Rx4 organisation and operates at the standard 1.20 V.

Check system memory specifications

Verify that your server supports DDR4 2400 registered ECC memory in a 288-pin DIMM slot before ordering. Confirm the maximum module capacity and population rules for your specific model. The part replaces HP numbers such as 805349-B21, 819411-001 and 862930-B21.

Steady throughput under load

Registered buffering and ECC correction maintain data integrity during sustained workloads. The CL17 latency and 1.20 V operation keep power draw predictable over long runs. Major-brand chips are tested for reliable continuous operation in multi-socket configurations.

How it compares

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

Price $88.99
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 $5.56 per GB
Cheaper than about 68% 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 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V

Questions about this item

Does the 16 GB DDR4 2400 ECC RDIMM come as a single module or a kit?

The package contains one 16 GB DDR4 2400 ECC RDIMM (288-pin DIMM) — no additional modules or accessories are included.

Should I choose the 1Rx4 rank or a dual-rank alternative for my HP server?

This module is 1Rx4; pick it when your system's qualified-vendor list specifies a single-rank registered ECC DIMM for the target slot population.

What does the PC4-19200 rating mean for actual throughput in a compatible server?

PC4-19200 indicates a 2400 MT/s data rate; the module runs at 1.2 V with CL17 latency and ECC error correction for registered server workloads.

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