What Is the HP EliteDesk 400 G6 Mini?
The HP EliteDesk 400 G6 Mini is a compact business-class desktop from HP's EliteDesk line. It is built around Intel's 9th-generation desktop platform, typically offered with processors such as the Intel® Core™ i3-9100T, i5-9500T or i7-9700T, or a Pentium® Gold part, paired with integrated Intel® UHD Graphics 630. These are low-power "T-series" chips with a 35 W thermal design, which is what allows the chassis to stay small — roughly 177 × 175 × 34 mm, or about one litre of volume.
Typical configurations include two SODIMM slots supporting up to 32 GB of DDR4-2666 memory, a single M.2 2280 PCIe NVMe slot for storage, and often a 2.5-inch bay. Connectivity on most variants covers Gigabit Ethernet, multiple USB 3.1 Gen 1 and Gen 2 ports, USB-C, DisplayPort 1.2 and a VGA or second display output. The machine is usually fed by an external 65 W or 90 W power adapter and ships with Windows 10 Pro, which is upgradeable to Windows 11 on supported processor variants.
Key Specifications at a Glance
| Feature | Typical EliteDesk 400 G6 Mini | Thinvent IPC3 (12th Gen) |
|---|---|---|
| Processor | Intel® 9th Gen Core™ i3/i5/i7 T-series | Intel® Core™ i3-1215U (6 core, up to 4.4 GHz) |
| Cores / Threads | 4C/4T to 8C/8T | 6 cores / 8 threads |
| Memory | Up to 32 GB DDR4-2666 | Up to 16 GB DDR4 |
| Storage | 1× M.2 NVMe, optional 2.5" | 1 TB SSD |
| Cooling | Active fan | Fanless options available across the range |
| Networking | 1× Gigabit Ethernet | Gigabit Ethernet, dual-port variants |
| Serial / Industrial I/O | Limited (via expansion) | Quad DB9 serial variants available |
| Operating System | Windows 10/11 Pro | Windows 11 Pro, IoT Value, DOS, Thinux™ Embedded Linux |
Where This Class of Machine Fits
One-litre mini PCs like the EliteDesk 400 G6 Mini are popular in offices, call centres, retail counters and back-office roles where a full tower is unnecessary. Their small footprint frees desk space, and VESA mounting lets them sit behind a monitor. Because they use standard desktop operating systems and management tooling, they slot easily into existing IT fleets.
The trade-offs are the same across this category: a spinning fan that draws in dust, no native serial ports, and a power brick that adds a failure point. In dusty workshops, on shop floors, or in cabinets with poor airflow, that fan becomes the first component to clog and the most common cause of downtime. For control cabinets, kiosks, digital signage and edge installations, buyers often look for a sealed, fanless equivalent instead.
Choosing an Alternative
When specifying a replacement or an additional unit in the same role, match on the things that matter: processor class and core count, memory ceiling, storage interface, display outputs, serial requirements, and mounting. Also check the operating temperature range and ingress protection — a commercial mini PC is rated for a comfortable office, not for a factory floor. If your application needs RS-232/RS-485 devices, legacy industrial equipment, or 24/7 unattended operation, industrial-grade hardware is usually the better fit than a repurposed office desktop.
Thinvent Products in This Class
Thinvent builds fanless mini PCs, industrial computers, thin clients and all-in-one PCs that serve the same roles as one-litre business desktops, with a design emphasis on silent operation, dust tolerance and long service life. The Thinvent® Industrial PC IPC3, for example, pairs an Intel® Core™ i3-1215U processor (6 cores, up to 4.4 GHz, 10 MB cache) with 16 GB DDR4 RAM and a 1 TB SSD, and is available with Windows 11 Pro, Windows 11 IoT Value, DOS or Thinux™ Embedded Linux. Quad DB9 serial variants cover industrial equipment and POS peripherals, while dual-Ethernet models suit gateway and edge deployments. If you are sourcing a compact desktop for an office, a kiosk, a control panel or a production line, Thinvent's range offers a configuration to match.
