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Green printed circuit board with black heat spreader, 288-pin DDR5 DIMM module

HPE

HPE P43328-B21 32GB DDR5-4800 server RAM

SKU CH-5WW5-V6K6Q MPN P43328-B21

32 GB DDR5-4800 registered dual-rank DIMM running at 1.10 V with CL40 latency for server, rack and blade platforms

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Memory profilesIntel XMP 3.0
  • Product colorBlack/Green
  • 32 GB DDR5-4800 capacity for high-density server workloads
  • Dual-rank 4800 MT/s speed increases memory bandwidth over DDR4 3200 MT/s
  • Registered 288-pin DIMM adds signal integrity for rack and blade servers
  • 10 V operation lowers power draw per module
  • Intel XMP 3.0 profile enables automatic performance tuning

HPE DDR5-4800 Registered DIMM

This 32 GB HPE P43328-B21 module is built for server, rack and blade platforms that require registered DDR5 memory. It targets administrators expanding capacity in enterprise environments where data integrity and sustained uptime are priorities.

Thermals and power efficiency

Operating at 1.10 V, the dual-rank DIMM is designed for lower power draw than previous DDR4 3200 MT/s modules. HPE qualification selects high-quality DRAM to maintain stability without excessive heat in dense chassis configurations.

Sustained load behaviour

Under continuous workloads such as virtualization or large databases, the registered signal buffering and CL40 latency help maintain consistent throughput at 4800 MT/s. Rigorous testing unlocks platform-specific performance features available only with HPE servers.

How it compares

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

Price $494.99
Pricier than about 70% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $15.47 per GB
Pricier than about 76% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Total capacity32 GB
Product colorBlack/Green
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
Memory profilesIntel XMP 3.0
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size168 × 64 × 15 mm

Questions about this item

How is the 288-pin DDR5 DIMM installed, and what step is often missed?

Align the notch with the slot key, press firmly until both retention clips click, then verify the module is seated evenly; the step often missed is confirming both clips lock simultaneously.

What maintenance or replacement will the 32GB dual-rank module need later?

No routine maintenance is required; replacement is only needed if a memory error appears or capacity must be increased beyond 32GB.

What limit appears first under sustained load with 1.10V DDR5-4800 CL40 memory?

Thermal throttling from the memory controller typically limits sustained throughput before the module reaches its rated voltage or latency ceiling.

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