Skip to main content
HP logo

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

2022–2023

Form Factor: M.2 2280Interface: NVMe PCIe 4.0Max Capacity: 2TB
Upgradeable

Quick answer

The HP HP Pro Tower 400 G9 (400 G9) is matched with Samsung 980 Pro, WD Black SN770M, Samsung 990 Pro, Samsung 980 Pro, WD Black SN850X 1TB, Samsung 990 Pro, WD Black SN770M, Crucial T500 1TB, Crucial P3 Plus 1TB, WD Blue SN580 1TB. Compatible storage type: M.2 2280 NVMe PCIe 4.0. Capacity guidance: up to 2TB. Before buying, confirm your exact model number, storage interface, physical size, and connector/keying. Listings are from eBay and Amazon and may change.

Compatible SSDs for the HP HP Pro Tower 400 G9

Listings and prices are pulled from eBay and Amazon and may change. Always verify compatibility — confirm your exact model number, storage interface, physical size, and connector/keying — before purchase. Last checked June 20, 2026.

SSD Upgrade Guide for the HP HP Pro Tower 400 G9

This device uses a M.2 2280 drive with a NVMe PCIe 4.0 interface. Maximum supported capacity is 2TB.

NVMe drives are significantly faster than SATA — if your device supports NVMe, always prefer it over a SATA SSD for the best performance.

Always power off your device and disconnect power before replacing storage.

Frequently Asked Questions

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

The HP HP Pro Tower 400 G9 (400 G9) is matched with Samsung 980 Pro, WD Black SN770M, Samsung 990 Pro, Samsung 980 Pro, WD Black SN850X 1TB, Samsung 990 Pro, WD Black SN770M, Crucial T500 1TB, Crucial P3 Plus 1TB, WD Blue SN580 1TB. It supports M.2 2280 NVMe PCIe 4.0. This device supports up to 2TB based on our records. Before buying, confirm your exact model number, storage interface, physical size, and connector/keying.

How do I verify SSD compatibility?

Verify your full model number against the device page, then confirm the physical form factor (M.2 2280), interface (NVMe PCIe 4.0), and M.2 keying if applicable. Compare against your existing drive or manufacturer specs before purchase.

Can I use NVMe if my device originally had SATA?

The HP HP Pro Tower 400 G9 (400 G9) is recorded as supporting NVMe storage (M.2 2280 NVMe PCIe 4.0). Installing an NVMe drive that matches the documented form factor and keying is appropriate when our data lists NVMe support.

Does physical size and keying matter?

Yes. M.2 drives vary by length (e.g. 2280) and keying (B-key, M-key, B+M). 2.5-inch and other form factors must match the bay or adapter your device accepts. The HP HP Pro Tower 400 G9 (400 G9) is documented as M.2 2280 NVMe PCIe 4.0 — a drive with the wrong size or key will not fit or work.

Are these listings live and current?

Listings and prices are pulled from eBay and Amazon and may change at any time. We refresh marketplace data regularly, but always verify the listing title, condition, and seller before purchase.