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Green 288-pin DDR4 DIMM with black memory chips, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KVR21R15D4/32 32GB DDR4 2133 ECC Registered Server RAM

SKU CH-KX63-XDXRP MPN KVR21R15D4/32

32 GB DDR4 server DIMM with ECC and registered signal processing at 2133 MHz CL15

  • Capacity32GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Timing15-15-15
  • Voltage1.20V
  • 32 GB capacity supports dense server workloads
  • ECC registered design detects and corrects memory errors
  • DDR4 2133 speed with CL15 timing delivers stable throughput
  • 2 V operation reduces power draw per module
  • 288-pin DIMM form factor fits standard server slots

Server-grade 32 GB DDR4 module

This 32 GB DDR4 DIMM is built for servers that require registered ECC memory. It delivers 2133 MT/s at CL15 with a 1.20 V operating voltage. The module targets administrators who need reliable capacity for virtualisation or database workloads.

Registered ECC with 2Rx4 organisation

The single specification that determines fit is the registered ECC design combined with a 2Rx4 rank layout. Only platforms that explicitly support registered modules and this rank configuration will initialise the memory correctly. Standard desktop or unbuffered server boards will not accept it.

Steady 1.20 V operation under load

The module maintains its rated 1.20 V across the VDD range of 1.14 V to 1.26 V during sustained use. Sixteen internal banks and bank grouping help distribute access patterns evenly, preventing hot-spots during long-running compute jobs. No heat spreader is fitted, so chassis airflow must handle thermal dissipation.

Highlights

  • 32 GB capacity supports dense server workloads
  • ECC registered design detects and corrects memory errors
  • DDR4 2133 speed with CL15 timing delivers stable throughput
  • 2 V operation reduces power draw per module
  • 288-pin DIMM form factor fits standard server slots

Specifications

BrandKingston
SeriesValueRAM
ModelKVR21R15D4/32
Capacity32GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Timing15-15-15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
FeaturesPower Supply: VDD=1.2V (1.14V to 1.26V)
VDDQ = 1.2V (1.14V to 1.26V)
VPP - 2.5V (2.375V to 2.75V)
VDDSPD=2.25V to 2.75V
Functionality and operations comply with the DDR4 SDRAM datasheet
16 internal banks
Bank Grouping is applied, and CAS to CAS latency (tCCD_L, tCCD_S) for the banks in the same or different bank group accesses are available
Data transfer rates: PC4-2133, PC4-1866, PC4-1600
Bi-Directional Differential Data Strobe
8 bit pre-fetch
Burst Length (BL) switch on-the-fly BL8 or BC4 (Burst Chop)
Supports ECC error correction and detection
On-Die Termination (ODT)
Temperature
Shipping weight0.04 kg
Package size146 × 46 × 3 mm

Questions about this item

What does the 32 GB capacity mean once this module is installed in a server?

The module provides a single 32 GB DIMM, expanding system memory by that amount and operating at the rated DDR4 2133 speed with ECC and registered signalling.

How does the DDR4 2133 (PC4 17000) interface limit real-world throughput?

The DDR4 2133 standard sets a maximum data rate of 2133 MT/s, so peak bandwidth is capped at the PC4 17000 level regardless of the server’s memory controller.

What physical slot and clearance does the 288-pin registered DIMM require?

It fits a standard 288-pin DDR4 DIMM socket; the module has no heat spreader, so only the bare PCB height needs to clear the server’s DIMM spacing.

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