M321R8GA0BB0-CQKZJ: Samsung 64GB DDR5-4800 PC5-38400 ECC Registered RDIMM 2Rx4 288-Pin Server Memory Module
MPN: M321R8GA0BB0-CQKZJ|By: Samsung

Starting from
$395
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
This is the Samsung 64GB DDR5-4800 PC5-38400 ECC registered RDIMM 2Rx4 288-Pin Server Memory Module, order code M321R8GA0BB0-CQKZJ. Memory is the part most often ordered wrong, because rank, voltage and population rules differ per platform and per slot. This module is DDR5-4800. Give us the server model and the DIMMs already fitted and we will confirm the configuration is supported.
Send the quantity you need and we will come back within 48 business hours with availability confirmed, not estimated.
Specifications
General
- Manufacturer part number
- M321R8GA0BB0-CQKZJ
- Product Type
- Server Memory
- Manufacturer
- Samsung
Technical specifications
- Capacity
- 64GB
- Memory Type
- DDR5-4800
- Memory Speed
- PC5-38400
- Module Type
- ECC
Specifications for M321R8GA0BB0-CQKZJ as published by Samsung. Where a value is absent it is because we could not verify it, not because it does not exist. Ask and we will check.
Where the Samsung M321R8GA0BB0-CQKZJ is deployed
- Swapping out a failed server memory module for M321R8GA0BB0-CQKZJ under change control
- Raising host memory to fit more virtual machines per node
- Replacing a DIMM flagged by correctable-error logging
Who this part is for
- Virtualisation teams raising host memory to fit more guests per node
- Procurement buying memory kits against a documented configuration
- Teams retiring mixed-speed memory in favour of one consistent part
What you get ordering this from us
Ordered by part number
M321R8GA0BB0-CQKZJ is what is quoted and M321R8GA0BB0-CQKZJ is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
No substitutions without asking
If we cannot supply the exact code we tell you what we can supply and why, rather than shipping an equivalent and letting you find out.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Questions buyers ask about this part
Is M321R8GA0BB0-CQKZJ genuine and is the warranty intact?
Yes. It ships new in Samsung packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will M321R8GA0BB0-CQKZJ work in my server?
Send the server model and a list of the DIMMs already fitted. Rank, voltage and population order all have to agree, and a module that is electrically compatible can still be unsupported in a given slot. We map the population before you order.
Do you accept purchase orders and quote at volume?
Yes. We quote against a purchase order and hold the price for the quote period, with tiered rates at quantity. Net terms are available once the account is approved.
Compare other Server Memory we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| SK hynix 32GB DDR5-5600 PC5-44800 ECC Registered CL46 288-Pin RDIMM Server Memory Module | SK hynix | Capacity: 32GB | In Stock | $215 |
| Micron 128GB DDR4-3200 PC4-25600 ECC Load-Reduced CL22 288-Pin LRDIMM Server Memory Module | Micron | Capacity: 128GB | In Stock | $500 |
| Dell Technologies 16GB DDR5-4800 PC5-38400 ECC RDIMM CL40 288-Pin Server Memory Module | Dell Technologies | Capacity: 16GB | In Stock | $95 |
| HPE 16GB DDR5-4800 PC5-38400 ECC RDIMM CL40 288-Pin Server Memory Module | HPE | Capacity: 16GB | In Stock | $95 |
| Lenovo 16GB DDR5-4800 PC5-38400 ECC RDIMM CL40 288-Pin Server Memory Module | Lenovo | Capacity: 16GB | In Stock | $90 |
| Kingston 8GB DDR4-3200 PC4-25600 ECC RDIMM CL22 288-Pin Server Memory Module | Kingston | Capacity: 8GB | In Stock | $35 |
Browse all Server Memory or everything we stock from Samsung.
Specifying a system, not just the part?
Host memory on an AI node is normally sized against accelerator memory, so the model and its working set both fit.
