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Four green DDR4 modules with silver heatspreaders and gold contacts

Kingston Technology Corp.

Kingston Technology Corp. KVR21R15D4K4/64 64GB (4 x 16GB) DDR4 2133 CL15 ECC Registered Server RAM

SKU CH-NWWZ-9V0CJ MPN KVR21R15D4K4/64

A quad-channel kit of four 16 GB DDR4 registered ECC modules running at 2133 MT/s with CL15 latency for server workloads

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in critical workloads
  • Registered buffering reduces electrical load for stable server operation
  • Quad-channel kit delivers 64 GB total capacity across four matched modules
  • DDR4 2133 speed with CL15 latency balances throughput and responsiveness
  • 288-pin DDR4 form factor fits standard server memory slots

64GB Quad-Channel DDR4 Kit

This Kingston KVR21R15D4K4/64 kit provides 64GB of server memory across four 16GB modules. It uses 288-Pin DDR4 SDRAM rated for 2133 MT/s with a CL15 latency. The modules feature ECC Registered operation and DR x4 organisation with thermal sensing. The kit is new and was first listed by the manufacturer in 2018.

For ECC Registered Platforms Only

This memory suits servers and workstations that require Registered DIMMs with error correction. It will not function in consumer desktop boards or laptops that accept only unbuffered non-ECC memory. Buyers needing unbuffered DDR4 or higher speeds than 2133 MT/s should select a different kit.

Registered ECC Decides Compatibility

The single specification that determines fit is the Registered ECC design. Only systems with chipsets and CPUs that explicitly support Registered DDR4 ECC modules can use this kit. Verify the platform documentation before purchase.

Puntos fuertes

  • ECC protection prevents data corruption in critical workloads
  • Registered buffering reduces electrical load for stable server operation
  • Quad-channel kit delivers 64 GB total capacity across four matched modules
  • DDR4 2133 speed with CL15 latency balances throughput and responsiveness
  • 288-pin DDR4 form factor fits standard server memory slots

Especificaciones

BrandKingston
ModelKVR21R15D4K4/64
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitQuad Channel Kit
FeaturesDR x4 w/TS
Peso de envío0.12 kg
Dimensiones del paquete165 × 104 × 39 mm

Preguntas sobre este artículo

How do I install the 288-pin DDR4 modules and what step is often missed?

Align the notch on each 16 GB stick with the motherboard slot key, press down firmly until both retention clips click, then repeat for all four modules to complete the quad-channel kit.

What maintenance or replacement will the ECC registered memory need over time?

The modules have no moving parts and require no scheduled maintenance; replacement is only necessary if a stick fails or if the server is upgraded to a different memory generation.

What limit appears first when the quad-channel kit runs at DDR4 2133 under sustained load?

The CL15 latency at 2133 MT/s sets the bandwidth ceiling, so throughput plateaus before thermal throttling becomes a factor.

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