M321RAGA0B20-CWKZJ: Samsung 128GB DDR5 4800MHz ECC RDIMM Memory
MPN: M321RAGA0B20-CWKZJ|By: Samsung
Starting from
$7,340
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
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
Part number M321RAGA0B20-CWKZJ identifies this Samsung 128GB DDR5 4800MHz ECC RDIMM Memory. Population order decides whether you get the full memory bandwidth or a fraction of it, and the rules change between one and two processors. This is a 128GB module. Send the current layout and we will map the slots for you.
Priced per unit, with tiered pricing at quantity. Send the number you need and we will come back with the banded price.
Specifications
General
- Manufacturer part number
- M321RAGA0B20-CWKZJ
- Product Type
- Server Memory
- Manufacturer
- Samsung
Technical specifications
- Capacity
- 128GB
- Memory Type
- DDR5
- Module Type
- ECC
The table below is what the server memory module is documented as, not what we have inferred from the part number. If the figure you need is missing, ask and we will source it from the manufacturer.
Where the Samsung M321RAGA0B20-CWKZJ is deployed
- Like-for-like replacement of M321RAGA0B20-CWKZJ in an existing system
- Standardising a host on one module type and speed
- Raising host memory to fit more virtual machines per node
Who this part is for
- Engineers populating channels correctly on a new or part-filled board
- Teams retiring mixed-speed memory in favour of one consistent part
- MSPs matching DIMMs to what a customer already has installed
What you get ordering this from us
Ordered by part number
Quoted and supplied against M321RAGA0B20-CWKZJ specifically, so what arrives is what your build sheet asks for.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Rank and voltage confirmed
We check rank, voltage and module type against the platform before quoting, which is where most memory orders go wrong.
Questions buyers ask about this part
Is M321RAGA0B20-CWKZJ 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 M321RAGA0B20-CWKZJ 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. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
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.