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RAM for HP HP Pro Tower 400 G9 (400 G9)

Model Years: 2022–2023

Max RAM: 64GBRAM Slots: 2RAM Type: DDR5 4800MHz
✓ RAM Upgradeable

Quick answer

Our data matches the HP HP Pro Tower 400 G9 (400 G9) with Crucial 32GB DDR5-4800 DIMM (DDR5, DIMM, 4800MHz, 32GB); Crucial 16GB DDR5-4800 DIMM (DDR5, DIMM, 4800MHz, 16GB); Kingston 16GB DDR5-4800 DIMM (DDR5, DIMM, 4400MHz, 16GB), plus 2 more options listed below.

Supported memory profile: DDR5, DIMM, 4800MHz, up to 64GB max, 2 slots.

Before buying, confirm your exact model number, memory generation, form factor (DIMM), speed, and maximum supported capacity. Listings are updated regularly when available.

Compatible RAM for the HP HP Pro Tower 400 G9

Listings currently loading — check back soon.

Crucial 32GB DDR5-4800 DIMM

CT32G48C40U5

HIGH
DDR54800MHz32GBDIMM

Crucial 16GB DDR5-4800 DIMM

CT16G48C40U5

HIGH
DDR54800MHz16GBDIMM

Kingston 16GB DDR5-4800 DIMM

KVR48U40BS8-16

HIGH
DDR54400MHz16GBDIMM

Crucial 8GB DDR5-4800 DIMM

CT8G48C40U5

HIGH
DDR54800MHz8GBDIMM

Kingston 8GB DDR5-4800 DIMM

KVR48U40BS6-8

HIGH
DDR54400MHz8GBDIMM

Frequently Asked Questions

What RAM fits the HP HP Pro Tower 400 G9 (400 G9)?

Based on our compatibility data, the HP HP Pro Tower 400 G9 (400 G9) supports DDR5, DIMM, 4800MHz, up to 64GB max, 2 slots. Matched modules include Crucial 32GB DDR5-4800 DIMM (DDR5, DIMM, 4800MHz, 32GB); Crucial 16GB DDR5-4800 DIMM (DDR5, DIMM, 4800MHz, 16GB); Kingston 16GB DDR5-4800 DIMM (DDR5, DIMM, 4400MHz, 16GB); Crucial 8GB DDR5-4800 DIMM (DDR5, DIMM, 4800MHz, 8GB); Kingston 8GB DDR5-4800 DIMM (DDR5, DIMM, 4400MHz, 8GB). Always confirm your exact model number before purchasing.

How do I verify RAM compatibility?

Check that your device label or manual shows 400 G9 (or HP Pro Tower 400 G9). Confirm memory generation, form factor (DIMM), speed, slot count, and maximum supported capacity match the specs on this page before ordering.

Can I mix RAM speeds or capacities?

Many systems run best with matched pairs (same capacity and speed). Mixing capacities or speeds may work but can force lower speeds or single-channel mode — check your OEM documentation.

Are these listings live and current?

Live marketplace listings for this device are being updated. Compatibility data on this page may still help you identify the correct RAM type to search for.

RAM Upgrade Guide for the HP HP Pro Tower 400 G9

This device uses DDR5 at 4800MHz. Maximum supported capacity is 64GB.

This model has 2 RAM slots. Installing matched pairs (dual-channel) gives the best performance — use identical capacity modules in both slots.

Always power off and unplug your device before installing RAM. Ground yourself to avoid static discharge.