P43328-B21 - HPE 32GB DR x8 DDR5-4800 Smart Memory Kit

HPE P43328-B21 — 32GB (1×32GB) DDR5-4800 Registered ECC Smart Memory (Gen11)

What it is

P43328-B21 is an HPE Smart Memory RDIMM for ProLiant Gen11 servers.
It’s a 32GB DDR5 Registered ECC module running at 4800 MT/s, qualified by HPE to match Gen11 platform rules. Think “the standard 32GB DDR5 RDIMM you add to DL360/DL380/ML350 Gen11 when you want reliable, supported memory.”

Why buyers pick P43328-B21 (plain English)

• Certified Gen11 compatibility
  HPE Smart Memory avoids the “will it boot / will it downclock” drama you can get with unqualified DIMMs.

• 32GB is the practical scaling step
  Big enough to matter for virtualization and app density, without the cost jump to 64GB+ per slot.

• Server-grade reliability
  RDIMM + ECC is built for uptime and data integrity in 24×7 workloads.

• Health & performance visibility
  Smart Memory enables proper reporting and tuning on supported ProLiant Gen11 systems.

60-second spec box (P43328-B21)

Capacity

• 32 GB

Module type

• DDR5 RDIMM (Registered DIMM)

Speed / standard

• DDR5-4800 (PC5-38400 class)

Rank / organization

• Dual Rank (2R×8)

ECC / reliability

• ECC Registered

Voltage

• 1.1V

Pins / form factor

• 288-pin DIMM

Target platforms

• HPE ProLiant Gen11 and any HPE systems specifying DDR5-4800 RDIMM Smart Memory

Where it fits (and when to choose something else)

Perfect for:

• Expanding memory in Gen11 ProLiant servers

• Virtualization hosts, databases, general enterprise compute

• Standard RAM upgrades needing reliable ECC RDIMMs

Choose something else if:

• Your server requires LRDIMMs instead of RDIMMs

• You want higher per-slot capacity → 64GB / 128GB Gen11 DDR5 RDIMMs

• You’re on Gen10/Gen10+ (DDR4 platform) → use DDR4 Smart Memory

TL;DR

P43328-B21 is HPE’s 32GB DDR5-4800 ECC Registered Smart Memory RDIMM for Gen11 servers: a safe, supported 32GB building block for scaling ProLiant Gen11 RAM.