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Green 288-pin DDR4 memory module with black chips and silver heatsink

HPE

HPE 805351-B21 32GB DDR4 2400 Registered CL17 2Rx4 server RAM

SKU CH-P8VY-E60F5 MPN 805351-B21

32 GB DDR4 2400 registered server memory with CL17 timing and 2Rx4 organisation

  • Total capacity32 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 32GB capacity supports memory-intensive workloads
  • Registered DDR4 2400 delivers stable server performance
  • CL17 latency with 17-17-17 timing ensures responsive data access
  • 20V operation reduces power draw per module
  • 2Rx4 dual-rank 288-pin design maximises density per slot

32GB DDR4 2400 Registered DIMM

This HPE 805351-B21 module provides 32GB of DDR4 2400 memory with CL17 timing and 1.20V operation. The 288-pin registered design includes a 2Rx4 rank configuration for server platforms. It is built for enterprise workloads that require registered memory with error correction support. ||

Target servers needing registered ECC memory

This suits administrators upgrading or repairing HPE ProLiant and compatible servers that require registered DDR4 modules. It is not for desktop PCs or laptops that use unbuffered consumer memory. Buyers who need higher frequencies or different capacities should look at other specifications. ||

Registered 2Rx4 rank at 2400 MT/s

The registered signal buffering and 2Rx4 organisation determine whether this DIMM matches the motherboard memory controller requirements. Verify that the platform supports registered DDR4 2400 with this rank configuration before purchase.

How it compares

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

Price $609.99
Pricier than about 73% 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 $19.06 per GB
Pricier than about 80% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHPE
Model name805351-B21
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
Memory timings17-17-17
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.07 kg
Package size163 × 71 × 13 mm

Questions about this item

What does the 32 GB capacity mean for a live server workload?

The module provides 32 GB of addressable memory for the operating system and applications when installed in a compatible DDR4 slot.

What does the DDR4 2400 (PC4 19200) rating cap in practice?

The memory runs at up to 2400 MT/s with CL17 timing at 1.20 V, limited by the platform memory controller and BIOS settings.

What does the 288-pin registered 2Rx4 design need to fit?

A 288-pin DDR4 DIMM slot that supports registered modules; the 2Rx4 organisation requires a memory controller that can address quad-rank x4 devices.

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