AD267891 — Dell 128GB DDR5-6400 PC5-51200 ECC Registered (2Rx4) 288-pin RDIMM Server Memory
MPN: AD267891|By: Dell

Starting from
$10,240
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
Part number AD267891 identifies this Dell 128GB DDR5-6400 PC5-51200 ECC registered (2Rx4) 288-pin RDIMM Server Memory. Registered, load-reduced and unbuffered modules are not interchangeable, and a board that accepts one will refuse to post on another. This module is ECC. Send the server model and we will check it against the supported-DIMM list before you order.
Priced per unit, with tiered pricing at quantity — send the number you need and we will come back with the banded price.
Featuring
- Capacity
- 128GB
- Manufacturer
- Dell
Interfaces / Ports
- Memory Speed
- PC5-51200
Physical characteristics
- Memory Type
- DDR5-6400
- 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.
These are the 6 facts we can state about AD267891 without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the Dell AD267891 is deployed
- Swapping out a failed server memory module for AD267891 under change control
- Filling the remaining channels on a part-populated board
- 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
- Virtualisation teams raising host memory to fit more guests per node
- MSPs matching DIMMs to what a customer already has installed
What you get ordering this from us
Ordered by part number
The order is placed against AD267891, not against a description of it, so there is no room for a substitution you did not agree to.
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 AD267891 genuine and is the warranty intact?
- Yes — new and sealed, with the Dell warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
- Will AD267891 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 — POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
Compare other Server Memory we stock
Browse all Server Memory or everything we stock from Dell.
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.
