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Green circuit board with black memory chips and gold edge connector

Kingston Technology Corp.

Kingston Technology Corp. KSM48R40BS4TMI-32MDI 32GB DDR5 4800 CL40 1Rx4 Registered ECC server RAM

SKU CH-7XAE-MEZSP MPN KSM48R40BS4TMI-32MDI

32GB DDR5 RDIMM running at 4800 MHz with CL40 latency, registered ECC and 1.10V operation

  • Capacity32GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Timing40-39-39
  • Voltage1.10V
  • 32 GB capacity supports heavy workloads
  • DDR5 4800 speed moves data quickly
  • CL40 latency enables fast access
  • Registered ECC improves server reliability
  • 10 V operation reduces power draw

Server memory for registered ECC platforms

This 32GB DDR5 RDIMM delivers 4800 MHz speed with CL40 timing at 1.10V. It is built for servers and workstations that require registered signal processing and error correction. The single-rank 1Rx4 layout fits standard 288-pin DDR5 slots.

Upgrade from slower or non-ECC DDR5

The module replaces lower-speed DDR5 memory or unbuffered sticks that lack ECC protection. The jump is worth it when data integrity and registered buffering are required for stable operation under sustained workloads. Systems limited to lower DDR5 speeds will not reach the rated 4800 MHz without compatible platform support.

Fits 288-pin DDR5 RDIMM slots without a heat

The bare module sits in registered DDR5 channels and leaves clearance for tight heatsink spacing. It needs a motherboard that supports registered ECC DDR5 at 1.10V. The single-rank design frees rank slots for additional modules on multi-channel server boards.

Highlights

  • 32 GB capacity supports heavy workloads
  • DDR5 4800 speed moves data quickly
  • CL40 latency enables fast access
  • Registered ECC improves server reliability
  • 10 V operation reduces power draw

Specifications

BrandKingston
ModelKSM48R40BS4TMI-32MDI
Capacity32GB
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Timing40-39-39
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Shipping weight0.09 kg
Package size165 × 51 × 8 mm

Questions about this item

Will this 288-pin DDR5 RDIMM fit my server motherboard?

The module uses the standard 288-pin DDR5 RDIMM form factor. It fits any server board with DDR5 RDIMM slots keyed for registered memory.

What BIOS setting is often missed when installing this registered ECC module?

Enable ECC and registered mode in the BIOS after seating the DIMM. Many builders forget to activate both, leaving error correction and signal buffering disabled.

Does the lack of a heat spreader mean I must add cooling later?

No spreader is included. In typical server chassis with directed airflow the bare module runs within its 1.10V thermal envelope, so extra cooling is not required.

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