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Green 288-pin DDR5 RDIMM module, black chips, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KSM48R40BD8-32HA 32GB DDR5-4800 CL40 2Rx8 ECC Registered server RAM

SKU CH-XD1B-G7AJW MPN KSM48R40BD8-32HA

32 GB DDR5-4800 registered ECC RDIMM with CL40 latency for server workloads

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

Capacity 32GB

Rank 2Rx8

Model Hynix, DRAM Lock

  • 32 GB capacity supports heavy multi-tasking workloads
  • DDR5-4800 speed delivers 4800 MT/s data rates
  • CL40 CAS latency with 40-39-39 timings ensures responsive operation
  • ECC registered design provides error correction for server reliability
  • 2Rx8 dual-rank 288-pin RDIMM architecture maximises memory density

Server-ready DDR5 RDIMM

This 32GB DDR5-4800 registered module delivers ECC protection and a 2Rx8 organisation for multi-socket servers and workstations that require data integrity at scale. It operates at 1.10V with CL40 timing and a 288-pin interface. The design omits a heat spreader to fit dense DIMM layouts.

Suited for registered-memory platforms only

Systems that demand unbuffered UDIMMs or non-ECC memory cannot use this module. Buyers who need higher capacities per slot or lower latencies should look at different configurations. The registered signal adds one cycle of buffering, which unbuffered boards do not support.

Fits 288-pin DDR5 RDIMM slots

The module requires a motherboard qualified for DDR5 registered DIMMs and ECC operation. It frees the memory controller from single-bit error correction overhead and leaves headroom for populating all channels at the rated 4800 MT/s speed.

How it compares

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

Price $966.99
Pricier than about 80% 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 $30.22 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKSM48R40BD8-32HA
Total capacity32 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.02 kg
Package size159 × 44 × 6 mm

Other versions of this model

5 more in the same range

Questions about this item

Does my motherboard need a 288-pin DDR5 RDIMM slot for this module?

Yes, this is a 288-pin DDR5 RDIMM requiring a compatible server motherboard with DDR5 registered DIMM slots and ECC support.

Will this 2Rx8 registered DDR5-4800 module work in a system that currently uses 1Rx8 DDR5-4800 RDIMMs?

Mixing 2Rx8 and 1Rx8 ranks is possible if the motherboard supports both rank configurations and the memory controller handles the mixed topology at DDR5-4800.

How can I verify the CL40 40-39-39 timings and 1.10V voltage are active after installation?

Check the BIOS memory information or use a tool like CPU-Z to confirm the module reports DDR5-4800, CL40, 40-39-39 timings and 1.10V operation.

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