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Green rectangular DDR4 memory module with gold contacts and black chips

HP

HP 16GB DDR4 3200 ECC Reg Dual Rank 288-pin P06031-B21

SKU CH-XRP8-HV6T3

Registered DDR4 DIMM with ECC, 16 GB capacity, 3200 MHz speed, CL22 latency and dual-rank organisation for servers and workstations

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • 16 GB DDR4 3200 MHz capacity for demanding workloads
  • ECC registered design detects and corrects single-bit errors
  • Dual-rank organisation increases memory density per slot
  • CL22 latency supports responsive data access
  • 288-pin DIMM form factor fits standard server and workstation slots

HP 16GB DDR4 3200 ECC Reg Module

This 288-pin registered DIMM provides 16GB of DDR4 memory operating at 3200MHz with CL22 latency. It is designed for servers and workstations that require error-correcting code for data integrity.

Sustained Load Behaviour

Registered buffering reduces electrical load on the memory controller during continuous operation. Dual-rank organisation allows the controller to interleave accesses across ranks, helping maintain throughput under prolonged workloads.

DDR4 Interface Limits

The PC4-25600 standard defines a maximum data rate of 3200MT/s for this module. Registered DIMMs add one clock cycle of latency compared to unbuffered types, which is a fixed characteristic of the DDR4 registered interface.

How it compares

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

Price $86.99
Typical for this category: the median of 3,647 items is $90.99.
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $5.44 per GB
Cheaper than about 66% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameHP
Part numberP06031-B21
Total capacity16 GB
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22

Questions about this item

Will this module fit a standard 288-pin DDR4 DIMM slot?

Yes, the module uses the 288-pin DDR4 form factor used by servers and workstations that accept registered ECC memory.

Does my motherboard need to support registered ECC memory for this to work?

This is a registered ECC module, so the platform must explicitly support registered DDR4 with ECC; standard desktop boards without that support will not POST.

What does the CL22 latency mean for real-world throughput?

CL22 is the CAS latency at 3200 MT/s; lower latency would be faster, but registered ECC modules prioritise stability over minimum latency.

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