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Green DDR5 memory module with black chips and gold contacts

HPE

HPE P69727-B21 32GB DDR5-6400 server RAM

SKU CH-ZMHX-MEVTE MPN P69727-B21

32 GB DDR5-6400 server memory module rated PC5-51200 for compatible HPE systems

  • Total capacity32 GB
  • Product typeDDR5-6400/PC5-51200 SDRAM
  • 32 GB capacity supports memory-intensive server workloads
  • DDR5-6400 speed delivers high bandwidth for demanding applications
  • PC5-51200 rating indicates peak data transfer capability
  • 2Rx8 organisation optimises rank density for scalable configurations
  • HPE Smart Memory technology enables advanced health monitoring

HPE 32GB DDR5-6400 Server Module

This HPE P69727-B21 module delivers 32 GB of DDR5-6400 memory for compatible servers. It uses a 2Rx8 PC5-6400B-R Smart configuration rated at PC5-51200 speed. The part is listed as new condition and was first listed by the manufacturer on 23 July 2026.

Suited for DDR5-6400 capacity upgrades

Administrators expanding memory on platforms qualified for DDR5-6400 can install this 32 GB stick. Buyers whose systems require a different DDR generation, a lower data rate, or a non-Smart module should look elsewhere. Builders needing ECC registration details not provided here must verify compatibility independently.

Deciding spec: DDR5-6400 / PC5-51200 speed

The single specification that determines fit is the DDR5-6400 rating, also expressed as PC5-51200. Only servers validated for this exact data rate and the 2Rx8 Smart organisation will accept the module. Confirm the platform memory list before purchase.

How it compares

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

Price $2,200.99
Pricier than about 88% 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 $68.78 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Model name32 GB 2Rx8 PC5-6400B-R Smart
Part numberP69727-B21
Total capacity32 GB
Product typeDDR5-6400/PC5-51200 SDRAM
Size & build
Shipping weight0.05 kg
Package size178 × 76 × 13 mm

Questions about this item

What real-world bandwidth does the 6400 MT/s rating deliver in a server?

The module runs at DDR5-6400 and is labelled PC5-51200; actual throughput depends on the platform and memory controller configuration.

Which slot standard does the PC5-51200 designation fit?

It uses a standard DDR5 DIMM slot; the PC5-51200 marking indicates the rated data rate, not a different connector.

Will the 2Rx8 layout fit a standard server DIMM socket?

Yes, the 2Rx8 organisation follows the regular DDR5 DIMM form factor for server memory slots.

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