J9P81AA — HP 4GB DDR4 2133MHz ECC Registered RDIMM 1.2V 288-Pin Memory
MPN: J9P81AA|By: HP
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Product overview
Part number J9P81AA identifies this HP 4GB DDR4 2133MHz ECC registered RDIMM 1.2V 288-Pin 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 4GB module. Send the current layout and we will map the slots for you.
Quote requests are answered within 48 business hours, with availability confirmed before you raise a purchase order rather than after.
Featuring
- Capacity
- 4GB
- Manufacturer
- HP
Physical characteristics
- Memory Type
- DDR4
- 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 5 facts we can state about J9P81AA without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the HP J9P81AA is deployed
- Like-for-like replacement of J9P81AA in an existing system
- Filling the remaining channels on a part-populated board
- Standardising a host on one module type and speed
Who this part is for
- Procurement buying memory kits against a documented configuration
- Virtualisation teams raising host memory to fit more guests per node
- Teams retiring mixed-speed memory in favour of one consistent part
What you get ordering this from us
Ordered by part number
J9P81AA is what is quoted and J9P81AA is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
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 J9P81AA genuine and is the warranty intact?
- Yes — new and sealed, with the HP warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
- Will J9P81AA 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.
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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.