M321R8GA0BB0-CQK — Samsung 64GB DDR5-4800 ECC Registered RDIMM Dual Rank x4 288-Pin Server Memory Module
MPN: M321R8GA0BB0-CQK|By: Samsung

Starting from
$1,140
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Product overview
Samsung lists M321R8GA0BB0-CQK as a 64GB DDR5-4800 ECC registered RDIMM dual rank x4 288-Pin Server Memory Module. 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 a photo or a dump of the current DIMM layout and we will map the population for you before you order.
Featuring
- Capacity
- 64GB
- Manufacturer
- Samsung
Physical characteristics
- Memory Type
- DDR5-4800
- Module Type
- ECC
- Product Type
- Server Memory
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Specifications for M321R8GA0BB0-CQK 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-CQK is deployed
- Like-for-like replacement of M321R8GA0BB0-CQK in an existing system
- Replacing a DIMM flagged by correctable-error logging
- Filling the remaining channels on a part-populated board
Who this part is for
- Engineers populating channels correctly on a new or part-filled board
- MSPs matching DIMMs to what a customer already has installed
- Procurement buying memory kits against a documented configuration
What you get ordering this from us
Ordered by part number
Quoted and supplied against M321R8GA0BB0-CQK specifically, so what arrives is what your build sheet asks for.
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.
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 M321R8GA0BB0-CQK genuine and is the warranty intact?
- Yes. Supplied new and unopened, so the manufacturer warranty and firmware update path stay supported. No grey-market stock and no refurbished units sold as new.
- Will M321R8GA0BB0-CQK 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
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.
