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Green printed circuit board 288 pin DDR5 RDIMM memory module 16GB

HPE

HPE P50309-B21 16GB DDR5 4800 ECC Registered RDIMM server RAM

SKU CH-SVXJ-AD8B3 MPN P50309-B21

16 GB DDR5 4800 ECC registered RDIMM with CL40 timing for server systems

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Memory timings40-39-39
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 16 GB capacity for high-density server workloads
  • DDR5 4800 speed delivers 38400 MT/s bandwidth
  • ECC registered design corrects errors and reduces bus load
  • CL40 latency with 40-39-39 timing optimises response
  • 10 V operation lowers power draw per module

HPE 16GB DDR5 4800 ECC Registered RDIMM

This HPE Smart Memory kit delivers 16GB of DDR5 4800 speed in a 288-pin RDIMM form factor. It operates at 1.10V with CL40 latency and 40-39-39 timings. The module features ECC error correction and registered buffering for signal integrity. It is a 1Rx8 rank configuration built for compatible server platforms.

Suited for servers needing registered ECC memory

This module fits systems requiring DDR5 RDIMMs with ECC and registered support at the PC5 38400 data rate. It is not for platforms limited to UDIMM or SO-DIMM form factors. It is also unsuitable for systems that cannot accept 1.10V DDR5 memory or those requiring different CAS latency profiles.

288-Pin DDR5 RDIMM form factor decides fit

The module uses a 288-pin DDR5 RDIMM connector with registered signalling and ECC capability. Compatibility depends on the motherboard supporting this specific pin layout, voltage, and registered architecture. Verify the platform qualification list before purchase as DDR5 RDIMMs are physically and electrically distinct from other memory types.

How it compares

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

Price $919.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $57.50 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 nameP50309-B21
Total capacity16 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Power
Rated voltage1.1 V
Size & build
Shipping weight0.91 kg
Package size178 × 127 × 76 mm

Questions about this item

What slot does the 288-pin DDR5 RDIMM require on the server motherboard?

It fits a standard 288-pin DDR5 DIMM slot that supports registered ECC modules.

Which way round does the 288-pin module go in, and what click confirms it is seated?

Align the off-centre notch with the slot key, press straight down until both side latches snap closed.

When should the 16 GB DDR5 4800 module be replaced if ECC starts logging correctable errors?

Replace it once the platform firmware reports a rising correctable-error count that exceeds the vendor threshold.

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