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Green rectangular DDR5 server memory module with black chips and gold contacts

Kingston Technology Corp.

Kingston Technology Corp. KSM48R40BD4TMM-64HMR 64GB DDR5 4800 ECC Registered DIMM server RAM

SKU CH-2WKZ-H0Q7K MPN KSM48R40BD4TMM-64HMR

A 64 GB DDR5 registered ECC DIMM running at 4800 MT/s with CL40 timings at 1.10 V

  • Capacity64GB
  • Type288-PIN DDR5 R-DIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Timing40-39-39
  • Voltage1.10V
  • 64 GB capacity supports large server workloads
  • DDR5-4800 speed delivers 38400 MB/s bandwidth
  • ECC registered design corrects errors and stabilises signals
  • CL40 40-39-39 timings tuned for 4800 MHz operation
  • 10 V voltage reduces power draw per module

Capacity and registration

This 64 GB DDR5 registered DIMM is built for servers and workstations that require error-correcting memory at native 4800 MT/s. The module uses a 288-pin form factor and operates at 1.10 V with CL40-39-39 timings.

Registered ECC requirement

Systems that accept registered DDR5 ECC modules can use this part; platforms limited to unbuffered memory or to a different DDR generation cannot. Buyers needing non-ECC or lower-capacity sticks should select a different product.

4800 MT/s speed rating

The single specification that decides fit is the DDR5-4800 (PC5-38400) speed grade. The motherboard and processor must support this exact data rate for the module to run at its rated frequency.

Highlights

  • 64 GB capacity supports large server workloads
  • DDR5-4800 speed delivers 38400 MB/s bandwidth
  • ECC registered design corrects errors and stabilises signals
  • CL40 40-39-39 timings tuned for 4800 MHz operation
  • 10 V voltage reduces power draw per module

Specifications

BrandKingston
ModelKSM48R40BD4TMM-64HMR
Capacity64GB
Type288-PIN DDR5 R-DIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Timing40-39-39
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Shipping weight0.32 kg
Package size142 × 43 × 8 mm

Questions about this item

Will this 288-pin DDR5 R-DIMM fit my motherboard's DDR5 slots?

This module uses the standard 288-pin DDR5 R-DIMM form factor. It fits motherboards with DDR5 registered DIMM slots that support ECC memory.

Can I mix this CL40 4800 MHz module with slower DDR5 ECC RDIMMs I already have?

The system will run all installed modules at the speed and timings of the slowest kit. This module operates at 4800 MHz with 40-39-39 timings at 1.10 V.

How do I confirm the 64 GB module is running at DDR5 4800 with ECC active?

Check the BIOS memory information or use a tool like CPU-Z. It should report 4800 MT/s, CL40 timings, 1.10 V, and show ECC as enabled for this 64 GB DIMM.

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