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Green HPE 16GB DDR4 288-pin UDIMM module with black chips

HPE

HPE P43019-B21 16GB DDR4 3200 CL22 288-Pin Server RAM

SKU CH-4EEN-M72XB MPN P43019-B21

16 GB DDR4 3200 CL22 ECC unregistered module for entry-level HPE servers

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnregistered
  • Product type288-Pin DDR4 SDRAM
  • 16 GB DDR4 3200 MHz capacity handles demanding workloads
  • CL22 CAS latency delivers fast data access cycles
  • 20 V low-voltage operation reduces power consumption
  • 288-pin unregistered DIMM fits standard server slots
  • HPE-qualified DRAM ensures compatibility with entry-level HPE servers

16GB DDR4 Server Memory

The HPE P43019-B21 is a 16GB DDR4 3200 CL22 module built for entry-level HPE server platforms. It uses unregistered ECC SDRAM to protect data integrity in everyday workloads. The single 288-pin DIMM runs at 1.20V and targets small-business environments that need validated compatibility.

Sustained Workload Behaviour

The module operates at PC4-25600 speeds with CL22 latency across continuous read and write cycles. Unbuffered signalling keeps the command path short for steady throughput in virtualization or database tasks. HPE qualification testing verifies stable operation under prolonged load without throttling.

Thermals Noise Power

Standard 1.20V DDR4 voltage limits heat output during normal server operation. Passive cooling via chassis airflow is sufficient for the unregistered design. The module adds minimal acoustic contribution and draws only the power required for its rated frequency.

How it compares

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

Price $368.99
Pricier than about 64% 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 $23.06 per GB
Pricier than about 84% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Model nameP43019-B21
Part numberP43019-B21
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnregistered
Power
Rated voltage1.2 V
Size & build
Shipping weight0.05 kg
Package size173 × 112 × 58 mm

Questions about this item

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

The module operates at 1.20 V, the standard DDR4 voltage, which keeps power draw low during all-day workloads in supported HPE platforms.

What server platform must I already own for this HPE P43019-B21 module to function?

It is validated for entry-level HPE servers that accept 288-pin unregistered DDR4 3200 ECC DIMMs.

Will this CL22 3200 MHz stick run stably beside older DDR4 modules in the same channel?

The module runs at DDR4 3200 CL22; the system will match the slowest installed DIMM speed and loosest latency automatically.

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