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Four green DDR4 memory sticks with gold contacts and silver heatspreaders

Kingston Technology Corp.

Kingston Technology Corp. KVR21R15S4K4/32 32GB (4 x 8GB) DDR4 2133 ECC Registered CL15 server RAM

SKU CH-VYV5-MR7JV MPN KVR21R15S4K4/32

32 GB quad-channel DDR4 kit with ECC registered modules running at 2133 MT/s and CL15 latency

  • Capacity32GB (4 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • ECCYes
  • Buffered/RegisteredRegistered
  • 32 GB quad-channel kit expands server memory capacity
  • DDR4 2133 speed delivers 17000 MB/s bandwidth
  • ECC registered design corrects errors for data integrity
  • CL15 latency provides responsive memory access
  • 288-pin DDR4 form factor fits registered DIMM slots

32 GB quad-channel DDR4 kit

This 32 GB kit contains four 8 GB DDR4 modules rated at 2133 MT/s with CL15 latency. ECC and registered buffering make it suitable for servers and workstations that require data integrity. The 288-pin form factor fits standard DDR4 server DIMM slots.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors in real time, preventing data corruption under prolonged workloads. The CL15 timing delivers consistent latency for memory-bound server tasks.

Build and connectors

Each module uses a 288-pin DDR4 interface with x4 DRAM organisation and on-board thermal sensor. The quad-channel kit ensures matched modules for multi-channel server platforms. Registered design adds a buffer chip that stabilises signalling in dense configurations.

Points forts

  • 32 GB quad-channel kit expands server memory capacity
  • DDR4 2133 speed delivers 17000 MB/s bandwidth
  • ECC registered design corrects errors for data integrity
  • CL15 latency provides responsive memory access
  • 288-pin DDR4 form factor fits registered DIMM slots

Caractéristiques

BrandKingston
ModelKVR21R15S4K4/32
Capacity32GB (4 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
ECCYes
Buffered/RegisteredRegistered
Multi-channel KitQuad Channel Kit
FeaturesDR x4 w/TS

Questions sur cet article

How much power does the registered DDR4 2133 kit draw when the server runs continuously?

Registered DDR4 modules operate at the standard 1.2 V for DDR4; the 2133 MT/s speed and CL15 timing keep per-module draw low, so a full 32 GB quad-channel set adds only a modest amount to the system power budget.

What motherboard feature is required for these 288-pin registered DIMMs to function?

The board must provide DDR4 slots that support registered (buffered) ECC memory; consumer boards that accept only unbuffered non-ECC DIMMs will not work with this kit.

If I add this CL15 2133 MHz kit to a server that already has slower DDR4 modules installed, what speed will the memory run at?

The memory controller will clock all populated channels down to the lowest common speed, so the new 2133 MT/s modules will run at the slower modules' frequency.

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