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Green 288-pin DDR4 server memory module with black chips

SK hynix

SK hynix HMA84GR7AFR4N-UH 32GB DDR4 PC4-19200 ECC Registered server RAM

SKU CH-G2SJ-PGV7D MPN HMA84GR7AFR4N-UH

32 GB DDR4 ECC registered server memory running at 2400 MHz with CL17 latency and 1.2 V operation

  • Total capacity32 GB
  • Rated speedDDR4 PC4-19200
  • CAS latencyCL 17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2G x 4
  • 32 GB capacity supports demanding server workloads
  • DDR4 2400 MHz speed enables high-throughput data transfer
  • ECC registered design corrects errors for data integrity
  • Dual-rank 2G x 4 organisation maximises memory density
  • CL 17 latency at 1.2 V balances performance and efficiency

32GB DDR4 ECC Registered module

This 32GB DDR4 module runs at PC4-19200 with a CAS latency of 17. It is built for servers and workstations that require error-correcting code and registered signal buffering. The 288-pin DIMM operates at a standard 1.2V.

Sustained load behaviour

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC circuitry detects and corrects single-bit errors in real time without halting the system. Dual-rank x4 organisation maintains stable throughput across all 32GB under prolonged workloads.

DDR4 interface limits

The PC4-19200 rating sets a maximum data rate of 2400 MT/s for this module. JEDEC DDR4 specifications define the electrical and timing boundaries at 1.2V. Capacity per DIMM is fixed at 32GB with this 2G x 4 density.

How it compares

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

Price $112.99
Cheaper than about 64% 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.
CAS latency CL 17
Lower than about 92% of the 439 comparable items (median 40).
Price per GB $3.53 per GB
Cheaper than about 85% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSK hynix
Model nameHMA84GR7AFR4N-UH
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 PC4-19200
Memory
CAS latencyCL 17
ECC supportYes
Buffer typeRegistered
Memory rank2G x 4
Power
Rated voltage1.2 V

Questions about this item

How much heat does the 1.2 V registered ECC module produce during continuous 2400 MHz operation?

The module runs at 1.2 V with CL17 timing, so power draw and heat output stay within standard DDR4 registered DIMM limits for a 32 GB dual-rank stick.

Does my motherboard need 288-pin DDR4 slots that support ECC registered memory to use this DIMM?

Yes — the stick is a 288-pin DDR4 PC4-19200 registered ECC module, so the board must provide DDR4 RDIMM slots with ECC capability.

Will this CL17 2400 MHz registered ECC DIMM run at its rated speed when installed beside slower DDR4 registered ECC modules?

The memory controller will negotiate a common speed; all populated slots operate at the lowest supported frequency among the installed modules.

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