Technical Specifications
UDIMM for HP Pro Tower 400 G9 DDR5 Desktop
Module Density: 8GB
Form Factor: UDIMM
Technology Speed: DDR5 4800MHz PC5-38400
Rank: 1Rx8
Voltage: 1.1V
ECC: Non-ECC
Buffered: Unbuffered
Compatible Machines: HP Pro Tower 400 G9 PCI Desktop PC (DDR5 models), HP Pro Tower 480 G9 PCI Desktop PC (DDR5 models)
HP Pro Tower 400 G9 DDR5 Desktop
The HP Pro Tower 400 G9 DDR5 Desktop supports 2 slots of upgradable memory, with a maximum capacity of 64GB. It is compatible with our UDIMM modules for high-performance operation.
NEMIX RAM memory upgrades for the HP Pro Tower 400 G9 DDR5 Desktop are backed by a lifetime replacement warranty.
Our modules are researched, matched, and compatibility-tested using top-tier components from leading suppliers such as Samsung, Micron, and Hynix, ensuring compliance with
industry standards like JEDEC and CE requirements.
ALTERNATE CONFIGURATION SOLUTIONS
Also available for this machine
Memory speed and module type are not interchangeable — choose the page that matches your system.
Description
NEMIX RAM memory upgrades for the HP Pro Tower 400 G9 DDR5 Desktop: DDR5-4800 PC5-38400 non-ECC Unbuffered (UDIMM) modules, 8GB, 16GB and 32GB, sold as single modules and matched kits of up to 2, selected as drop-in, compatibility-tested replacements. 1.1V, 288-pin, JEDEC-compliant.
This listing covers the Pro Tower 400 G9 PCI Desktop PC (DDR5 models) and Pro Tower 480 G9 PCI Desktop PC (DDR5 models). The HP Pro Tower 400 G9 DDR5 Desktop is built for a 12th Gen Intel Core processor. It has 2 DDR5 DIMM slots and supports up to 64GB. HP lists DDR5-4800 and DDR5-5600 modules for the Pro Tower 400 G9 DDR5 models; the processor and the number of modules installed set the running speed. HP lists non-ECC unbuffered memory for this desktop. Some Pro Tower 400 G9 computers use DDR4 memory instead of DDR5; see the DDR4 listing for the HP Pro Tower 400 G9 for those. Install identical modules in matched pairs for dual-channel operation; the system runs memory at the speed its processor supports.
Researched, matched, and compatibility-tested by NEMIX RAM, a US-based memory specialist since 1993, and backed by a lifetime warranty. Purchase orders, net terms, and volume pricing are available for desktop fleet refreshes; contact our sales team for a quote.






