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Green 288-pin DDR5 server memory module with black chips

Kingston Technology Corp.

Kingston Technology Corp. KSM48E40BD8KI-32HA 32GB DDR5 4800 CL40 ECC Unbuffered server RAM

SKU CH-DAFD-ESZQG MPN KSM48E40BD8KI-32HA

32 GB DDR5-4800 ECC unbuffered module with CL40 latency and 2Rx8 Hynix A-die chips

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetHynix A-DIE
  • CAS latencyCL40
  • Memory timings40-39-39
  • Rated voltage1.1 V

Capacity 32GB

Rank 2Rx8

  • ECC protection safeguards data integrity in server workloads
  • 4800 MHz DDR5 speed delivers high throughput for demanding tasks
  • 32 GB capacity supports memory-intensive applications and virtualization
  • CL40 latency with 1.10 V voltage balances responsiveness and efficiency
  • 288-pin unbuffered dual-rank design fits compatible motherboards directly

32 GB DDR5 ECC Unbuffered Module

This 32 GB DDR5 SDRAM module operates at 4800 MHz with CL40 latency and 1.10 V voltage. It features ECC error correction and an unbuffered design in a 288-pin form factor using Hynix A-die chips. The dual-rank 2Rx8 organisation supports data integrity for server and workstation workloads.

Suited for DDR5 platforms accepting unbuffered ECC

Builders populating servers or workstations that support unbuffered ECC memory at 4800 MHz will find this module compatible. Systems requiring registered or load-reduced DIMMs cannot use this kit. Platforms limited to earlier DDR generations or those needing speeds above 4800 MHz or latencies tighter than CL40 should consider other options.

Unbuffered ECC with dual-rank 2Rx8 organisation

The unbuffered signal path combined with ECC and a dual-rank 2Rx8 layout is the specification that determines fit. Motherboards must explicitly support unbuffered ECC DDR5 at this rank configuration; registered-only or non-ECC platforms will not accept the module.

How it compares

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

Price $293.99
Pricier than about 60% 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 $9.19 per GB
Pricier than about 64% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKSM48E40BD8KI-32HA
Total capacity32 GB
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetHynix A-DIE
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.1 V
Size & build
Shipping weight0.02 kg
Package size161 × 47 × 8 mm

Other versions of this model

1 more in the same range

Questions about this item

Will the Hynix A-DIE chips on this 32 GB DDR5 module need any firmware updates or re-training over time?

No firmware updates are required for the Hynix A-DIE ICs; the module runs at its rated 4800 MT/s with 40-39-39 timings for its service life.

What limit appears first when this dual-rank 2Rx8 stick runs continuously at 4800 MT/s?

The JEDEC-standard 1.10 V operating voltage sets the thermal ceiling before frequency or latency thresholds are reached.

How much heat and power does a single 32 GB DDR5 4800 CL40 module produce under all-day load?

At the specified 1.10 V the module draws only its rated power, generating modest heat that standard server airflow handles without extra cooling.

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