HP ProDesk 400 G6 SFF

What type of RAM does the HP ProDesk 400 G6 SFF support, and what is the maximum capacity?

It supports DDR4-2666 MHz non-ECC memory in two SO-DIMM slots. The maximum capacity is 32 GB (2 x 16 GB).

How many storage drives can be installed, and what types are supported?

The system has one M.2 2280 slot for NVMe or SATA SSDs, and one 2.5-inch SATA drive bay. It also includes one 3.5-inch SATA bay, supporting up to two total SATA drives.

What CPU generations are compatible with this model?

It supports Intel 9th Gen (Coffee Lake) processors, including Core i3, i5, i7, and Pentium/Celeron models, using the LGA 1151 socket.

Can the power supply be upgraded?

The HP ProDesk 400 G6 SFF uses a proprietary 180W or 250W external power adapter (brick-style). It is not user-upgradeable to a higher wattage model, as the motherboard and chassis are designed for specific PSUs.

Is the graphics card upgradeable?

Yes, it has one low-profile PCIe x16 slot for a dedicated graphics card, but only low-profile cards are physically compatible due to the small form factor chassis.

What wireless connectivity options are available?

It includes an M.2 2230 slot for a Wi-Fi/Bluetooth card (typically Intel AX200 or AX201 for Wi-Fi 6). The system also has an internal antenna.

How many USB ports are on the front and rear?

The front has two USB 3.1 Gen 1 Type-A ports and one USB 3.1 Gen 1 Type-C port. The rear has four USB 3.1 Gen 1 Type-A ports, plus two USB 2.0 ports.