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Green rectangular DDR5 RDIMM module with black memory chips on both sides and gold edge connector no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KSM64R52BS8-16MD 16GB DDR5-6400 CL52 ECC Registered 288-pin RDIMM server RAM

SKU CH-VQY1-D1AVQ MPN KSM64R52BS8-16MD

16 GB DDR5-6400 ECC registered RDIMM with CL52 latency for server workloads

  • Capacity16GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Timing52-52-52
  • Voltage1.10V

Capacity 16GB

Rank 1Rx8

  • ECC protection prevents data corruption in critical workloads
  • Registered design improves signal integrity for stable server operation
  • DDR5 6400 speed delivers high bandwidth for demanding applications
  • 10 V operation reduces power consumption per module
  • Single-rank 1Rx8 layout simplifies memory configuration planning

16GB DDR5-6400 ECC RDIMM

This 288-pin registered DDR5 module provides 16GB of server memory with on-die ECC and x80 ECC across two independent I/O sub-channels. It operates at 6400 MT/s with CL52 timings at 1.10V. The single-rank 1Rx8 design includes 32 internal banks and hard and soft post-package repair. No heat spreader is fitted.

Suited for registered-DIMM servers needing ECC

The module fits systems that require registered DDR5 RDIMMs with ECC and accept CL52 latency at 6400 MT/s. It is not for platforms that only support unbuffered UDIMMs, non-ECC memory, or lower DDR5 speeds. Builders needing higher capacity per slot, lower latency, or a heat spreader should look elsewhere.

16GB capacity with single-rank headroom

The 16GB single-rank stick leaves additional DIMM slots open for further expansion in multi-channel configurations. It handles typical virtualisation and database workloads within its 6400 MT/s bandwidth and CL52 timing. Capacity runs out when workloads exceed 16GB per channel or demand lower latency than CL52 provides.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • Registered design improves signal integrity for stable server operation
  • DDR5 6400 speed delivers high bandwidth for demanding applications
  • 10 V operation reduces power consumption per module
  • Single-rank 1Rx8 layout simplifies memory configuration planning

Specifications

BrandKingston
ModelKSM64R52BS8-16MD
Capacity16GB
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Timing52-52-52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo
Shipping weight0.02 kg
Package size161 × 47 × 6 mm

Other versions of this model

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Questions about this item

What DDR5 RDIMM slot and voltage does the KSM64R52BS8-16MD need?

The module fits a 288-pin DDR5 RDIMM slot and runs at 1.10 V typical VDD and VDDQ, with VPP at 1.8 V and VDDSPD between 1.8 V and 2.0 V.

Can this CL52 registered ECC module share a channel with slower DDR5 RDIMMs?

Yes, it will down-clock to the slowest installed module while keeping registered signalling and ECC active.

How do I confirm the 1Rx8 module is running at DDR5-6400 with on-die ECC?

Check BIOS or OS memory info for 3200 MHz clock, CL52 timings, registered mode and on-die ECC reported as enabled.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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