Kingston

Kingston 32GB DDR5-5600 ECC RDIMM

KSM56R46BD8PMI
Kingston DDR5 RDIMMmemory32GBDDR5-5600RDIMM
$40.62/GB
$1,299.99
REFURBIn Stock
This offer: sold by Custom Hardware · Amazon says Used / LikeNew
Prices refresh about once a day
Price updated
Price accurate as of Oct 22, 2026, 01:49 PM
Buy on Amazon

The Kingston 32GB DDR5-5600 ECC RDIMM is a 32GB DDR5 ECC server memory module in used condition. It is in stock at $1,299.99 - $40.62/GB.

This is a refurbished or recertified listing

Recertified enterprise drives are pulled from datacentre fleets, tested and resold. They are usually the cheapest route to bulk capacity, and the risk is concentrated in the first weeks - so check SMART data the day it arrives rather than the day you need it. What recertified means · Refurbished warranty terms · Verify on arrival

Same capacity, other options
DriveInterfaceCond$/TBPrice
Kingston 32GB DDR4-2400 ECC RDIMMDDR4-2400New$9427.84$294.62Buy on Amazon
Samsung 32GB DDR4-2666 ECC RDIMMDDR4-2666New$10289.92$321.56Buy on Amazon
Samsung 32GB DDR4-2666 ECC RDIMMDDR4-2666New$10289.92$321.56Buy on Amazon
Kingston 32GB DDR4-2666 ECC RDIMMDDR4-2666New$11199.68$349.99Buy on Amazon
Model context

Part of the Kingston line we track.

Quick Verdict

Kingston 32GB DDR5-5600 ECC RDIMM at $40.62/GB. Warranty varies by seller. Verify your server's QVL before purchase.

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Specifications

Capacity32GB
Module TypeRDIMM
GenerationDDR5
Speed5600 MT/s
ECCYes
Rank / Org—
Warranty—
ASINB0CMV5SBV1
Market context

Against every other module we have an in-stock price for today, this one is cheaper per gb than 30% of them (12 of 40). The cheapest we can currently buy is $4.92/GB; the middle of the market is $11.66/GB.

Compare against every 0.03125TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 32GBDDR5-5600
#1Kingston 32GB DDR5-5600 ECC RDIMMTHIS DRIVE
$40.62/GB
#2A-Tech 32GB DDR5-5600 ECC RDIMM
$45.55/GB

Compare to similar 32GB DDR5-5600 modules

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Frequently Asked Questions

Yes. At our last check it was $1,299.99 ($41,599.68 per terabyte at its 0.03125TB capacity), sold used under ASIN B0CMV5SBV1. Amazon sets the final price at checkout.

Amazon reports this listing (KSM56R46BD8PMI) as used, and its title makes no renewed or recertified claim, so the unit's origin is whatever the seller's note says - shown beside the price.

This row (ASIN B0CMV5SBV1) is stored as a DDR5 RDIMM at DDR5-5600. A DDR5 module fits only a DDR5 platform (the keying and voltage differ by generation), and registered and unbuffered modules are not interchangeable - check your board's memory specification for DDR5 RDIMM support.

Use Case Scenarios

🖥️
Virtualization Host Density
Proxmox, ESXi or Hyper-V host packing more VMs per socket.
✓ Excellent fit
RAM is the binding constraint on VM density long before CPU. Adding 32GB ECC modules lets a host carry more guests per socket, and ECC prevents a single bit-flip from corrupting a guest's memory.
💾
ZFS ARC Cache
TrueNAS or ZFS server where read performance depends on cache hit rate.
✓ Excellent fit
ZFS turns every spare gigabyte into ARC read cache — more RAM directly raises cache hit rates on active datasets. ECC is strongly recommended for ZFS, whose integrity guarantees assume trustworthy memory.
🗄️
Database Working Set
PostgreSQL, MySQL or in-memory analytics needing the working set resident.
✓ Excellent fit
Databases live or die on buffer pool size. Fitting the working set in memory converts disk reads into RAM reads — a latency improvement no storage upgrade matches. ECC protects against silent corruption in long-running instances.
🏠
Homelab ECC Upgrade
Home server or NAS build stepping up from consumer memory.
~ Good fit
For 24/7 homelab duty, ECC server memory at today's used/refurb prices is often cheaper per GB than new consumer RAM — with error correction included. Verify your board and CPU actually support ECC before buying.

Maintenance & Troubleshooting

Maintenance Checklist

On installRun a full memtest86+ pass
Boot memtest86+ and let it complete at least one full pass before trusting the module with production data. Catches infant-mortality defects and seating problems immediately.
On installVerify detected speed and channel population
Check BIOS/IPMI that the module runs at the expected MT/s and that channels are populated per the motherboard manual's DIMM order. Uneven population silently costs bandwidth.
MonthlyReview ECC error counters
Check IPMI/iDRAC/iLO event logs, or edac-util on Linux, for corrected ECC errors. Occasional corrected errors are normal; a climbing count on one DIMM predicts failure — replace it.
AnnuallyReseat and dust during maintenance windows
Airflow debris and socket oxidation cause intermittent errors. During planned downtime, blow out slots and reseat modules showing any corrected-error history.

Troubleshooting Guide

Cause: Unsupported module type (UDIMM vs RDIMM), wrong DDR generation, or incorrect slot population order.
Fix: Confirm the platform supports this exact type and generation (check the QVL), install in the manual's specified slot order, and reseat firmly until both latches click.